Insects evolved some 438-408 million years ago, from an ancestor that also crawled out of water into an air-filled terrestrial environment. Aggressive opportunist. Convergent evolution describes the ...

Pubic lice, also known as "crabs," are a kind of lice that cause infestations in the genital area. ... Pubic lice are small insects that can cause infestations and itchy, ...

Though flower crab spiders have preferences, they'll inhabit almost any bloom, particularly if the plant is native to the U.S ...

When a bee, fly, or other pollinating insect lands on the flower seeking nectar, the crab spider attacks, grabbing the prey, injecting venom (fatal to insects, numbing them within seconds) and ...

Crabs, such as this one from the Cook Islands, have colonized nearly every type of habitat on Earth, popping up everywhere from deep-sea hydrothermal vents to steamy mountainside jungles.

When a bee, fly, or other pollinating insect lands on the flower seeking nectar, the crab spider attacks, grabbing the prey, injecting venom (fatal to insects, numbing them within seconds) and ...