Marine animals have adapted to their habitat over millions of years. Huge whales and giant squids have been able to grow exceptionally large despite the absence

One major adaptation of mammals is part of what differentiates them from other animals: the growth and nourishment of babies inside the mother’s body! Water-re

Reptiles lay their eggs on land and most spend a lot of their time out of the water. While this is a fact today, it wasn’t always this way! Living on land is a

Insects are often the same color as their surroundings. Their mouthparts developed for exactly the food they like to eat. Grasshoppers have long, strong back le

When Darwin visited the Galapagos Islands, he found many kinds of finches there, each with a beak perfectly suited to the kind of food the bird commonly ate. Th