The tegu lizard (left) walks with a low-to-the-ground sprawling pose, while the contrasting greyhound (right) stands upright. (Peter Bishop/Harvard University) (CN) — What do an alligator, a greyhound ...

Explores the anatomy and functions of human joints, categorizing them into three main types: fibrous, cartilaginous, and synovial. It details the characteristics and subtypes of each joint type, ...

While often confused, frogs and toads, both amphibians, exhibit distinct traits. Frogs boast smooth, moist skin and long legs for jumping and swimming, preferring wet habitats. Toads, conversely, have ...