Life on Earth started out microscopically small, but it didn’t stay that way for long. Here are five of the biggest creatures to have ever called planet Earth home.

Survival of the fittest is how many of Earth’s animal species have endured. Today’s video from A-Z-Animals takes a closer ...

There are some pretty large animals in the world. Giraffes are notable for their long necks, and whales for their sheer size, but have you ever seen the biggest crab in the world? Coconut crabs are ...

Popular belief often points to apex predators such as lions or tigers as deadliest animals. However, most lethal animals are ...

Even today’s giants — towering giraffes and massive elephants — are tiny compared to the prehistoric titans that once dominated the planet. Long before humans showed up, Earth was home to creatures so ...