Smartest dinosaurs were not slow-witted. Discover the top 5 most intelligent dinosaurs of the Mesozoic Era, ranked by ...

Discover the 10 smartest fish in the sea known for problem-solving, memory, and tool use. Learn which marine species show ...

Dogs are smarter than cats, according to new research, but how do other species' IQs match up against each other? The Daily Beast pits dolphins vs. chimps, pigs vs. dogs, and more. Gallery: Animal IQ ...

There is a huge variety of bird species in the animal kingdom that are unique and have different abilities, which makes them different from each other. Thus, some of these animals are smart and are ...