1

Chuckwalla

The chuckwalla can grow up to 16 inches long, making it one of the largest desert lizards. However, its size isn't the most impressive thing about it. What sets it apart from the rest is its ability to inflate like a balloon to twice its size! That's right; chuckwallas inflate their bodies to fit perfectly into holes and crevices in rocks, making it nearly impossible for predators to pull them out.

As if that weren't enough, these lizards live in desert environments with virtually no water. Although they do take in some liquid, most of their hydration comes from the plants they eat.

2

Kangaroo rat

The incredible kangaroo rat is a specialist in surviving the harshest environments. One of its talents is construction; this rodent knows how to build elaborate burrows in sandy soils for shelter and protection. In addition, kangaroo rats have fur-lined cheek pouches that allow them to carry food from where they find it back to their burrows.

But what makes them unique is their jumping ability. As small rodents (just 3.5 to 5.5 inches), their leap is surprising: they can reach up to 9 feet in a single bound! Plus, like the chuckwalla, the kangaroo rat also survives in the desert on minimal water intake.

3

Gila monster

The Gila monster is as famous as it is amazing. This reptile, native to the southwestern United States and northern Mexico, stands out for its unique appearance: a dark, scaly skin with pink or orange spots. In addition, the Gila monster has something that makes it special: it's one of only two venomous lizards in North America. Its potent venom is full of neurotoxins that affect the nervous system of its prey, causing intense pain, swelling, bruising, and even paralysis.

4

Mojave green rattlesnake

While any snake can be terrifying to most of us, the Mojave Green Rattlesnake stands out for several reasons.

The crotalus scutulatus —according to its scientific name— is distinguished by its greenish hue, which not only gives it its characteristic nickname but also helps it camouflage in the desert sand. This snake is not only venomous but is considered one of the most dangerous rattlesnakes! Its potent venom contains neurotoxins that, if left untreated with antivenom, can be lethal to various species, including humans.

5

Cactus wren

You've probably tried transplanting a cactus or got close to one, only to end up with tiny thorns that pricked you for days. But this doesn't happen to the cactus wren, an amazing bird known for its exceptional adaptation to the desert.

As its name implies, one of the most impressive features of the cactus wren is its ability to build large and sturdy nests on cacti without getting hurt. As if that weren't impressive enough, the bird's cleverness leads it to cover its nest with snakeskin to discourage potential predators. Incredible, right?

6

Green tarantula

Spiders are among the most feared creatures by humans. But if there's one spider that could scare even the bravest, it's the Mojave green tarantula, which can grow up to 4 inches long and has legs that span up to 6 inches!

Its venom delivers intense pain to its prey while simultaneously paralyzing them. In addition, these tarantulas have urticating hairs that irritate predators' skin, eyes, and respiratory systems. On the other hand, one of their great traits is their lifespan: This species can live up to 25 years in the wild!

7

Sidewinder rattlesnake

The sidewinder rattlesnake is definitely one of the desert bosses. You can tell it’s dangerous just by seeing it: Its typical triangular, flat head is topped with two horns that don't look friendly at all.

But what makes it a unique species is its movement pattern. This snake doesn't move in a straight line but in a sidewinding motion, lifting its body off the ground in a zigzag pattern. That allows it to confuse its prey while moving quickly without getting burned by the hot sand.

8

Pinyon jay

The cactus wren is not the only bird on this list; the pinyon jay also has its place. Nicknamed "forest farmers," pinyon jays bury the seeds of pinyon pines to eat later. The seeds they leave uneaten sprout into new pines, creating a symbiotic relationship between tree and bird. Even more impressive is their incredible memory: pinyon jays can remember thousands of seed burial locations, even months after hiding them!

9

Desert tortoise

Unlike bears and other animals that hibernate during the winter, desert tortoises enter a form of hibernation known as brumation. This occurs when it's very hot to save energy and they need to protect themselves from the heat. To do so, desert tortoises create deep burrows using their strong, shovel-like front legs. In addition, they can live up to 50 years in the wild, making them one of the longest-living reptiles.

10

Bark Scorpion

When it comes to danger, the Bark Scorpion of the Mojave Desert is also one of the stars on this list. Considered one of the most dangerous scorpions in all of North America, this arachnid has a light yellowish body with darker spots. It tends to hide under rocks or trees, so you know where to be most careful. While it's not famous for attacking humans, it may sting if it feels threatened.

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

Federal holiday

Image: Kyrie kim

Every year in America, we celebrate Martin Luther King Jr. Day on the 3rd Monday of January. This date was chosen because MLK was born on January 15, 1929, which fell on a Thursday.

But did you know that MLK Day is the only US federal holiday that celebrates the birthday of someone who wasn't a US president? Can you guess what the other one is? That’s right—it’s Presidents’ Day, observed on the 3rd Monday of February in honor of George Washington’s birthday.

2

Not afraid

Image: Grant Durr

If there’s one thing that defines MLK, it’s his bravery. And just as he was not afraid to confront the oppressive norms of his time, neither was he afraid of jail. In fact, he was arrested between 25 and 30 times, always for reasons related to his nonviolent activism.

It was during one of these arrests, in 1963, that he wrote his famous Letter from Birmingham Jail.

3

Improvisation

Image: Demure Storyteller

Martin Luther King Jr.'s " I Have a Dream" speech remains one of the most famous speeches in the world to this day. Those powerful, inspiring words could only come from a brilliant mind. But did you know that part of his speech was improvised?

That's right! On August 28, 1963, MLK impressed the world from the Lincoln Memorial steps with a carefully prepared speech, but he also added spontaneous thoughts inspired by the excitement of the moment. In fact, the speech's most famous words—the ones that gave it its title—weren’t part of the original draft.

4

Star Trek fan

Image: Stefan Cosma

MLK was also someone who appreciated quality TV. He was known to be a fan of the original Star Trek series.

But he wasn't just a fan—he went on to influence the show! Actress Nichelle Nichols, best known for playing Lieutenant Uhura, was about to leave the show, but she met King, and he encouraged her to stay. He believed that Nichols' role was crucial in inspiring young African Americans.

5

Birth name

Image: insung yoon

The famous Martin Luther King Jr. was born on January 15, 1929, as Michael King Jr. in Atlanta, Georgia, named after his father, Michael King Sr. However, a few years later, that would change.

In 1934, after learning about Martin Luther, the leader of the Protestant Reformation, Michael King Sr. decided to change both his own name and his son’s to Martin Luther King Sr. and Martin Luther King Jr., respectively.

6

College at 15

Image: Priscilla Du Preez 🇨🇦

Martin Luther King Jr. skipped several grades and entered college at the young age of 15! Given his remarkable intelligence, this isn’t surprising, but his brilliance never fails to impress.

In 1944, he was admitted to Morehouse College in Atlanta, where he earned a Bachelor of Arts degree in Sociology. His studies there helped shape his critical perspective on society and its dynamics. Additionally, it was during his time at Morehouse that he decided to become a minister.

7

The first on Time

Image: NordWood Themes

Time magazine's Person of the Year (originally called "Man of the Year") debuted in 1927, with American aviator Charles Lindbergh gracing the cover.

It took 36 years for the first African American to earn this recognition. Of course, that honor went to Martin Luther King Jr., who was named Person of the Year in 1963 , following the historic March on Washington and his unforgettable " I Have a Dream " speech.

8

Julia Roberts!

Image: Nikhil Mistry

Just when you think there are no more surprises , here’s a fact that will astonish you: What do Martin Luther King Jr. and actress Julia Roberts have in common?

It turns out that Julia Roberts’ mom, Betty Lou Bredemus, was an active member of the Civil Rights Movement—even during her pregnancy—making her well-known to Martin Luther King Jr.'s family. And here’s the surprising part: MLK’s parents helped cover the medical expenses for Julia Roberts’ birth!

9

He lived to 39

Image: Unseen Histories

His impressive career, filled with groundbreaking achievements, might lead us to believe that he had many years to achieve all of it.

However, the minister was still a young man when he was tragically attacked on April 4, 1968, in Memphis, Tennessee. Sadly, Martin Luther King Jr. lived to be only 39 years old.

10

Writer

Image: Aaron Burden

MLK was not only a leader, activist, thinker, pastor, and Nobel Peace Prize winner; he was also a writer. That's right! King Jr. wrote several articles, letters, and books.

Among the most cited are his books Stride Toward Freedom: The Montgomery Story (1958), Strength to Love (1963), Why We Can't Wait (1964), Where Do We Go from Here: Chaos or Community? (1967), and the Letter from Birmingham Jail (1963).