See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A cat that was anonymously left at a Las Vegas animal shelter had ...

For a small number of animals, reproduction marks a biological endpoint rather than a stage in an ongoing life cycle. Death follows mating with such consistency that it can be predicted within a ...

Dim the lights, put on some slow jams... get up in the tree? National Geographic's Crittercam technology just revealed a mating ritual never before seen in any bear species. An Andean bear named Ruru ...

Photograph of three male zebra finches (Taeniopygia castanotis). In this study, more than 4,000 human participants from around the world were presented with pairs of animal sounds from 16 different ...

A new study of wild bats reveals that an animal's immune system is shaped by more than its need to fight infections. Researchers from the University of Maryland have found that sex, age and ...

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 ...

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 ...