1

American Bison

Image: Chloe Leis

The American bison once roamed the Great Plains in vast herds, a true icon of the American West. These massive mammals can weigh up to 2,000 pounds and stand 6 feet tall at the shoulder. Due to overhunting and habitat loss in the 1800s, their numbers dwindled dangerously low, with the species being driven to the brink of extinction.

Fortunately, thanks to dedicated conservation efforts, bison populations have rebounded miraculously and now roam freely through many of the United States' national parks, particularly in Yellowstone, where they have lived continuously since prehistoric times.

2

California Condor

Image: Kacie Long

The California condor is North America's largest flying land bird, boasting an impressive wingspan of nearly 10 feet. In the 20th century, populations dramatically declined due to various threats, including DDT and lead poisoning, poaching, and habitat loss. By 1987, only 27 individuals remained, with the species facing near-extinction.

Rigorous conservation efforts, including captive breeding programs, have increased the condor's numbers, and many individuals have been reintroduced to their natural habitats near the Grand Canyon area, Zion National Park, and the coastal mountains of California.

3

American Alligator

Image: David Clode

The American alligator, a formidable reptile, is native to the southeastern United States. As apex predators, they consume a wide range of prey, including fish, amphibians, reptiles, birds, and mammals. These powerful creatures can grow up to 15 feet long and weigh over 1,000 pounds.

Once hunted nearly to extinction for their hides, American alligators have made a remarkable comeback thanks to strict protection laws. Today, they thrive in swamps, marshes, and rivers, where they play a crucial role as ecosystem engineers. By constructing small ponds known as alligator holes, they create both wet and dry habitats that support a variety of other organisms.

4

Bald Eagle

Image: Ingo Doerrie

The bald eagle is not only America's national bird but also a powerful symbol of freedom all over the world. An opportunistic feeder that primarily subsists on fish, it is classified as a type of sea eagle, closely related to the European white-tailed eagle. Found throughout North America, this majestic bird has a wingspan of up to 7.5 feet and uses its sharp talons to snatch prey from the water.

Despite its name, the bald eagle is not actually bald. The name comes from an older use of the word "bald," which used to mean "white-headed." This bird of prey is also known for building the largest nest of any North American bird—a structure that can be up to 13 feet deep, 8 feet wide, and weigh almost 1 metric ton on average.

5

Gila Monster

Image: David Clode

The Gila monster, native to the southwestern United States, is one of the few venomous lizards in the world. These brightly colored reptiles are slow-moving and rarely attack humans, but they can deliver a powerful bite if threatened or mishandled. Gila monsters are a unique part of America's desert fauna, often inhabiting burrows or sheltering under rocks where conditions are favorable.

The name "Gila monster" refers to the Gila River Basin in Arizona and New Mexico, where these lizards were once abundant. Because the species has remained relatively unchanged morphologically since at least the Miocene, they are occasionally regarded as living fossils.

6

Red Wolf

Image: Patrick Fobian

A canid native to the southeastern United States with a size that falls between a gray wolf and a coyote, the red wolf is often classified either as a subspecies of the gray wolf or as a type of coywolf (a genetic hybrid of wolf and coyote). Despite their size, red wolves play a crucial role in their ecosystem as apex predators.

While their original range covered the southeastern United States to as far north as the state of New York, the species is currently critically endangered, with fewer than 20 individuals remaining in the wild. Efforts to save the species include captive breeding and reintroduction programs aimed at restoring their presence in the wild.

7

Florida Panther

Image: Maheera Kulsoom

The Florida panther, a subspecies of the cougar, roams the forests and swamps of southern Florida. Its modern range includes national parks and natural reserves such as the Big Cypress National Preserve and Everglades National Park. With only around 200 individuals left in the wild, these solitary and elusive cats are considered endangered and currently occupy only 5% of their historic range.

Conservation efforts focus on habitat preservation and reducing vehicle collisions, the leading cause of death for these big cats. Since 1982, this majestic feline has been officially recognized as Florida’s state animal.

8

Hawaiian Monk Seal

Image: Sebastian Coman Travel

Found only in the Hawaiian Islands, the Hawaiian monk seal is one of the only two mammals endemic to the islands, alongside the Hawaiian hoary bat. Its common name comes from the short hairs on its head, resembling a monk's tonsure, but native Hawaiians know it as ʻIlio-holo-i-ka-uaua, which translates to "dog that runs in rough water."

Considered one of the most endangered marine mammals in the world, with a population of about 1,400 individuals, these seals are protected by the Marine Mammal Protection Act and the Endangered Species Act.

9

Pronghorn

Image: Patrick Hendry

The pronghorn, native to North America's grasslands, is the second fastest land animal in the world, capable of reaching speeds up to 55 mph. Often mistaken for antelopes, pronghorns are actually unique to the American continent and are not related to Old World antelope species.

In fact, the pronghorn's closest living relatives are the giraffe and okapi. Remarkably, their incredible speed evolved as a defense mechanism against now-extinct predators, such as Miracinonyx , commonly known as the American cheetah.

10

Black Bear

Image: Robert Thiemann

The black bear, the most widely distributed bear species in North America, is found in forested areas from Canada to Mexico. These adaptable omnivores can weigh up to 600 pounds and are skilled climbers and swimmers.

Not related to grizzly or polar bears, black bears share more genetic similarities with the Asian black bear than with any other species. And before the migration of brown bears to the continent, American black bears were likely the only bear species present in much of North America. Despite their size and strength, black bears are generally shy and tend to avoid human contact whenever possible.

1

First tracks laid

Image: Tim Wildsmith

Date: 1827

The Baltimore and Ohio Railroad (B&O), chartered in 1827, became America’s first common carrier railroad. Construction began the following year, introducing horse-drawn carriages on iron rails. While rail lines existed before, most were privately owned or served specific industries.

2

Tom Thumb’s race

Image: K. Mitch Hodge

Date: 1830

Shortly after the establishment of the B&O’s chartered line, American industrialist and inventor Peter Cooper designed the first American steam locomotive, Tom Thumb , to convince the railroad’s owners to adopt steam power. To prove the technology’s potential, a race was organized between the locomotive and a horse. Although the horse won after Tom Thumb suffered a mechanical failure, the demonstration successfully proved the superiority of steam engines, marking a turning point in railroad history.

3

The railroad boom

Image: Museums Victoria

Date: 1840s to 1850s

With the rise of steam locomotives, railroads expanded rapidly, connecting major cities and driving unprecedented economic growth. By 1850, the U.S. had built 9,000 miles of railroad tracks . These rail lines played a crucial role in transporting goods—particularly agricultural products—to markets, revolutionizing commerce and travel across the country.

4

First transcontinental charter

Image: Alex Boyd

Date: 1862

The Pacific Railroad Act, signed by Abraham Lincoln in 1862, authorized the construction of the first transcontinental railroad, connecting the East and West coasts. The legislation empowered the Union Pacific and Central Pacific Railroads to undertake this monumental task, offering land grants and bonds to support the project. Beyond its technological significance, the act also demonstrated the federal government’s commitment to uniting the nation, fostering economic growth, and solidifying the country’s infrastructure.

5

Driving the Golden Spike

Image: Matt Benson

Date: 1869

On May 10, 1869, the Union Pacific and Central Pacific Railroads met at Promontory Summit, Utah, completing the first transcontinental railroad. During the ceremony, a 17.6-karat golden spike was ceremonially driven in —then promptly removed to prevent theft. This historic achievement connected the nation like never before, reducing cross-country travel time from months to days and forever transforming America's transportation landscape.

6

Standardized time zones

Image: Igor Savelev

Date: 1883

Another transformative effect of railroad expansion and faster travel times was the need for standardized timekeeping. To address the confusion caused by varying local times, the system of time zones was introduced. This not only revolutionized rail scheduling but also transformed travel and commerce across the country, helping synchronize operations nationwide and ensuring greater efficiency and coordination.

7

The Pullman revolution

Image: Jennifer Latuperisa-Andresen

Date: 1867

In 1867, George Pullman introduced the first luxury sleeper cars, offering passengers unmatched comfort on long-distance journeys. Pullman cars featured plush seating, fine dining, and exceptional on-board service, elevating the railroad experience to new heights. These innovations set a standard for first-class travel that extended far beyond railroads.

8

Connecting the South

Image: Oxana Melis

Date: 1870s

During the American Civil War, railroads were a strategic asset, enabling the swift movement of troops and supplies. After the war, Southern rail development played a key role in integrating the South into the broader U.S. economy, facilitating trade and mobility in the Reconstruction era. The Southern rail network expanded from 11,000 miles in 1870 to 29,000 miles by 1890, breaking the region's isolation and fostering economic growth.

9

Electric rail debuts

Image: Museums of History New South Wales

Date: 1888

Richmond, Virginia, became the site of America’s first electric streetcar system, forever revolutionizing urban transit. The system had a significant impact on the emerging electric trolley industry, with its design serving as a model adopted by many other cities. This shift marked the beginning of modern public transportation, transforming urban landscapes and mobility for generations to come.

10

The Golden Age

Image: Marco De Luca

Date: Early 20th Century

From 1900 to 1930, railroads dominated American transportation, carrying nearly all freight and passengers . During this period, innovations in track systems, signaling, and luxury amenities reinforced their status as the nation’s lifeblood. The industry thrived unchallenged until the rise of automobiles and airplanes reshaped the transportation landscape.

11

Amtrak takes over

Image: Jan Canty

Date: 1971

During the post-World War II economic boom, airlines and Interstate highways pushed many railroads out of business . As passenger rail declined, the U.S. government created Amtrak to sustain intercity travel, consolidating struggling private lines into a national service. While freight rail remained strong, Amtrak preserved passenger trains’ legacy, ensuring their continued role in America’s transportation system.

12

Modern freight titans

Image: Akshay Nanavati

Date: Present Day

Finally, we've reached the last station on our railroad journey! While the railroad landscape has drastically changed since its golden era, trains remain a vital backbone of the country’s economy. Freight railroads now dominate the industry, transporting over 1.7 billion tons of goods annually. The U.S. boasts one of the world’s largest and most efficient freight rail systems , transporting everything from coal to electronics and continuing to drive commerce and industry.

1

Give up your favorite food to lose weight

Image: amirali mirhashemian

Small amounts of your favorite high-calorie foods can be included in a weight-loss plan . Just remember to keep track of your total calorie intake. To lose weight, you must burn more calories than you consume.

2

Avoid bread, pasta, and rice

Image: Eaters Collective

Grains themselves aren’t necessarily bad or unhealthy. Consuming whole grains—such as brown rice, whole-wheat bread, cereal, and pasta—as part of a healthy eating plan is a good idea because whole grains provide iron, fiber, and other important nutrients .

3

Choose gluten-free foods

Image: mohamed hassouna

Gluten-free foods are not necessarily healthier if you don’t have celiac disease or a gluten sensitivity. Gluten is a protein found in wheat, barley, and rye grains. If you don’t have these health issues but avoid gluten anyway, you may miss out on important vitamins, fiber, and minerals.

4

Avoid all fats

Image: Kelly Sikkema

Despite all the bad press, not all fats are bad. Fat provides essential nutrients and should be an important part of a healthy eating plan. However, because fats have more calories per gram than protein or carbohydrates (or "carbs"), it is important to limit fat intake to avoid consuming extra calories.

5

Avoid dairy products

Image: Kenny Eliason

Dairy products are an important food group because they provide proteins needed to build muscles and support organ function , as well as calcium to strengthen bones.

Most dairy products, such as milk and some yogurts, have added vitamin D to help the body absorb calcium, since many Americans don’t get enough of these nutrients.

6

Go vegetarian to lose weight

Image: Anna Pelzer

Embracing a fully vegetarian diet only leads to weight loss if you reduce your total calorie intake . As often happens, some vegetarians may make food choices that could lead to weight gain, such as eating large amounts of foods high in sugar, fat, and calories.

Eating small amounts of lean meats can also be part of a healthy plan to lose or maintain weight.

7

Don’t snack between meals

Image: Shreyak Singh

There is nothing wrong with snacking. It can help prevent overeating at meals , provided the snacks are healthy —like apples, peanut butter, low-fat cheese, or whole-grain crackers.

8

Healthy eating is expensive

Image: Louis Hansel

Healthy eating can be expensive, but it doesn’t have to be. With a little planning and smart shopping , you can enjoy a much healthier diet on a budget . Many people think produce is too costly, but there are plenty of examples that prove otherwise. For instance, a large bag of lettuce is affordable and lasts a long time.

9

Avoid late-night snacks

Image: nrd

Late snacking isn’t inherently a problem. The real issue is when your late-night snacks are unhealthy . The time of day is not as important as what you eat. If you’re eating ice cream or chips and dip, you’ll gain weight—no matter what time it is.

10

Diet soda is better than regular soda

Image: Kenny Eliason

Multiple studies have linked diet soda to an increased risk of diabetes , metabolic syndrome, and obesity, though causation is still debated. Nonetheless, if you’re looking for a healthier soda alternative, try flavored water, sparkling water, or unsweetened tea.

11

Non-nutritive sweeteners are healthy

Image: Towfiqu barbhuiya

The increasing demand for low-calorie, low-carb, sugar-free foods has led to a larger portion of products containing non-nutritive sweeteners (NNS).

While it’s clear that a diet high in added sugar increases disease risk, intake of NNS may also raise the risk of type 2 diabetes by causing negative changes in gut bacteria and promoting blood sugar dysregulation.

12

White potatoes are unhealthy

Image: Lars Blankers

Delicious potatoes are often labeled as "unhealthy" because they are frequently eaten in unhealthy ways. However, these starchy vegetables are highly nutritious , providing potassium, vitamin C, and fiber , and can be included as part of a healthy diet. The key is to cook or bake potatoes, but never fry them.