Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the biggest animal that has ever existed. Whales can be found in every ocean ...

Megalodon may have been up to 80 feet long, but the colossal extinct shark was also probably thinner than scientists ...

Megalodon have always been compared to the modern great white shark. Scientists have found a reason why it shouldn't be.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Paleobiologist Dr ...

A video shared in a Feb. 21, 2025, X post claimed to show a "mesmerizing yet eerie" jellyfish moving across the seafloor. The ...

It’s fun to imagine secret dinosaur survivors living today, hidden in a remote corner of Earth. But the truth of who made it ...

How big they are: Can range from 4 inches (10 centimeters ... Snakes are exclusively carnivorous, meaning that they only eat other animals — and in some cases, eggs. Their diets range widely. Larger ...