Predators

One unique arachnid found not only in the Sonoran Desert but also in the Mojave and Chihuahuan deserts is the desert tarantula. Check out these amazing photos of desert tarantulas.

Four legs good, two legs bad? Not if you're a jerboa, a tiny, bipedal, desert rodent.

Praying mantises primarily hunt insects and spiders, but a new study found that for many large mantises, birds are also on the menu.

For a dozen species of praying mantises, birds aren't the predators — they're the prey.

Scientific discovery takes patience, determination, focus and perseverance. And sometimes it also takes 2,879 Plasticine caterpillars.

A deadly gang of orcas roving off the coast of northern California is meeting surprising opposition – humpback whales trying to foil their kills.

A newborn humpback whale learns early in life to use its "indoor voice" to avoid attracting the attention of nearby killer whales.

Researchers have identified the first arthropod with mandibles on record.

A 508-million-year-old critter — one that looks like a weird lobster with 50 legs, two claws and a tent-like shell — is the oldest known arthropod with mandibles on record, a new study finds.