Lydia Smith

Cornell veterinarians discovered a puppy whose jaw they had surgically removed because of a cancerous tumor had regrown it just eight weeks after the operation.

Piranhas have razor-sharp teeth and often travel in shoals, but can they really strip prey of its flesh in a matter of minutes?

Cities along the Atlantic coast — including New York, Boston, and Miami — are sinking into the ground.

A tusk scooped up my miners in North Dakota turned out to be one of the most complete skeletons of a mammoth ever discovered in the state.

An extremely rare leucistic alligator born in Gatorland, Orlando, is the result of a genetic condition that leads to the partial loss of skin pigmentation, resulting in white or translucent skin.

A megamouth shark that was pregnant with seven pups when it washed ashore in the Philippines has revealed secrets about how this elusive species gives birth.

Fossil enthusiast John Kreatsoulas thought the artifact was a log, before he realized he was holding a bone from the last ice age.

Dolphins in Koombana Bay, Western Australia, have learned how to raid crab pots being used for bait and remove the hooks, footage has revealed.

A huge Burmese python caught in Florida is the second-heaviest ever caught in the state, weighing in at 198 pounds.

Researchers tracked more than 200 bull sharks off the coast of New South Wales to find out exactly when they were most active and posed the greatest risk to humans.

From China's Heavenly Pit, which stretches down 2,172 feet, to the Devil's Sinkhole in Texas that is home to three million bats — here are some of the world's deepest known sinkholes.

The Sistema Huautla in Oaxaca is the 10th deepest cave on Earth, and a explorers with a 2023 expedition to map the system have added over 700 feet to its length.

At 335 feet (102 meters) in height, the enormous newly-discovered cypress tree — which was found in a forest in Tibet — would tower over the Statue of Liberty.

Megalodon once dominated Earth's oceans. Despite vanishing from the fossil record millions of years ago, rumors persist that these gigantic sharks are still alive.

During World War II, the sinking of a U.S. Navy ship led to one of the worst known shark attacks in history, with up to 150 killed in a feeding frenzy.

With huge teeth and large eyes, Crassigyrinus scoticus was specially adapted to hunt in the coal swamps of Scotland and North America.

The second deepest blue hole in the world has been discovered off the coast of the Yucatan Peninsula in Mexico. The giant, underwater cavern is around 900 feet deep and spans an area of 147,000 square feet.