Dinosaurs dominated life on Earth for 180 million years, between the Triassic and the Cretaceous periods. But the prehistoric animals that came before them paved the way for species that still exist ...

Which animals came first? For more than a century, most evidence suggested that sponges, immobile filter-feeders that lack muscles, neurons and other specialized tissues, were the first animal ...

Chinese Zodiac , Animals and Elements. HowStuffWorks recently offered readers a crash course on the Chinese zodiac. . Sometime before 1000 B.C.E., the Chinese developed a complex astrological system ...

In February, a pop-up science column, Annals of Inquiry, is appearing in place of Kyle Chayka’s column, Infinite Scroll. Chayka will return in March. Jane Goodall, the late primatologist, was known ...