A Delaware animal shelter is working to find new homes for 8,000 surviving chicks that were left abandoned in a U.S. Postal Service truck for three days. Another 4,000 of the animals died.
Two studies of wild chimps point to the evolutionary roots of human language. The studies found that chimp communication often relies on rhythmic structures and call combinations.
Hundreds of thousands of Velella velella, more commonly known as by-the-wind-sailors, are drifting onto the coastline. Beachcombers say they look like "blue diamonds strewn across the beach."
Human eyes have only seen a tiny, tiny, tiny fraction of the areas of the world that are covered by deep water. Scientists want to change how they explore these regions.
The cartoonish-looking salamanders have faced an uncertain future in the wild. But researchers hope that breeding axolotls in captivity and releasing them in the wild can help their numbers.
This week, the internet was up in arms over who would win in battle: 100 men or a single silverback gorilla? One expert says the real fight is much bigger.
National Adopt a Shelter Pet Day is on April 30. To bring awareness to the day, the Up First newsletter is sharing some stories from readers about how their pet has impacted their lives.
Last year, more than 9 million people watched across the world, and executive producer Johan Erhag said he expects viewership will be even higher this year.
Rockalina was an adult eastern box turtle living in the wild when she was taken into a New York home in 1977. When a reptile rehabilitation center got a hold of her this February, they worried for her survival.
When a 5.2 earthquake hit near San Diego, the San Diego Zoo Safari Park caught its elephants on video taking action to protect their young, forming what experts call an "alert circle."
