Puppies tussle in the annual Puppy Bowl. Kids start a game of tag in a schoolyard. Play has been observed and documented in many species — and not just in mammals. However, according to Dr. Michael ...

Few activities are as rewarding as solving a puzzle: the dopamine rush, that smug sense of achievement post-solve, and that ...

Beccy holds a PhD in Biological Science, a Master’s in Molecular Biology of Parasites and Disease Vectors, and a Bachelor’s in Human Biology and Forensic Science. Beccy holds a PhD in Biological ...

Rats make a high-pitched sound similar to laughter when they're being tickled. Pexels / Denitsa Kireva Rats, they’re just like us: The oft-maligned rodents love to play games and be tickled, and ...

Kansas City Chiefs head coach Andy Reid knows his team has a lot of work to do to contend for a playoff spot, but he had an ...

(CNN) — Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Puppies tussle in the annual ...