Scientists suggest female frogs listen for changes in the male calls as a signal for when it's warm enough to mate.

Here are 10 animals that have some of the highest levels of testosterone and the impact it has on their behavior and characteristics.

Love is complicated enough for humans, but in the animal kingdom, courtship can get downright bizarre as you’re about to see in the videos of the strangest animal mating rituals below. From underwater ...

Add Yahoo as a preferred source to see more of our stories on Google. A snow leopard signals its presence by urinating beside his trail. These scent markings aren't just territorial, they carry ...

When it comes to animals romancing in the wild, things get weird—really weird. Some animals offer bizarre gifts, some put on daring dances, and others? Well, let’s just say things get really messy.

The piece of Russian amber allowed scientists to recreate the ancient scene from the past and understand current animal behavior. The fossil, found in Kaliningrad, Russia, is a "unicorn" because it ...

When the total solar eclipse happens on Monday, animals at homes, farms and zoos may act strangely. Researchers can’t wait to see what happens when day quickly turns to night. By Juliet Macur and ...

New research reveals older singing male whales are increasingly successful at siring offspring compared to younger males.

While millions of people are preparing to watch the total solar eclipse that will make its way across North America on Monday, the animals in that affected area — in homes, on farms, in zoos and in ...