Horses were omnipresent in the West until only a few generations ago, but then they were replaced by machines and disappeared from our streets as well as our consciousness.

In a world full of wild insect defenses, bombardier beetles stand out for the violent chemical reaction they employ to deter enemies.

Recently, two baby monkeys were cloned—the first time primates have been successfully duplicated. Why are we so afraid of human cloning?

The story of dingoes in Australia is the first recorded case where an introduced predator has taken on such a functional role in its adopted ecosystem.

The range of animals known to make use of available medicinal materials includes orangutans, dogs, parrots, spider monkeys, lizards, and lemurs.

Fish intelligence? Yes, many studies have documented the ability of fish to learn from their environment. Fish exposed to a more complicated environment have an edge in learning.

How can law enforcement officials help save endangered animals from poachers? Techniques of forensic genetics used in human crime scene analysis are entering the fray.

A multi-decade study of wildlife in Africa found that armed conflict—even infrequent, low-level conflict—was enough to cause declines in a wide range of wildlife populations.

Australia's iconic Great Barrier Reef is facing a threat from a massive outbreak of crown-of-thorns starfish.

Sometimes different but related species can reproduce. When two different species successfully mate, the resulting offspring is called a hybrid.