Squids are carnivorous predators that primarily prey on fish, crustaceans and other squid. Because squid vary greatly in size â€“ some species are less than 1 inch in length, while others exceed 30 feet in length â€“ their specific prey preferences differ markedly from one species to the next. Some squid hunt by chasing down their prey, while others hide and lie in wait for food to swim past them.Continue Reading
Squids capture prey with their tentacles. Each tentacle is covered in thousands of small sucker disks, which help the creatures get a grip on their slippery prey. Once the prey has been grasped securely, they pull the food item towards their beak-like mouths. The beaks tear the prey into small pieces, enabling the squids to swallow the food. Most species have venom glands located in their heads along with ducts that lead to the beak. This venom is used to incapacitate prey as well as for defense.
Although they resemble squids and are called “vampire squids,” the species known as Vampyroteuthis infernalis is not a squid at all. Fittingly, these unique cephalopods have a different diet than true squids do. Vampire squids consume small bits of organic matter that drift down to the dark depths at which they live, rather than hunting live prey.Learn more about Squid
Scientifically speaking, a squid is not a fish, but a mollusk. Mollusks are soft-bodied creatures that have gills in order to breath through.Full Answer >
Squid extract oxygen from the water using gills, just as fish do. These gills are located in the squid's mantle, the soft but muscular cavity behind the squid's head.Full Answer >
Saltwater crocodiles are predators that eat a wide variety of prey, from insects, crustaceans, amphibians, small fish and small reptiles while young, to mud crabs, birds, turtles, wild boar and even buffalo when they grow large enough. Saltwater crocodile males grow as long as 22 feet and as heavy as 2,700 pounds, and are thus capable of taking very large prey. They are the largest living reptiles on Earth.Full Answer >
Giant squid live in every ocean on Earth but are particularly concentrated over the slopes leading up to continents and islands. They are rare in tropical and high polar regions. Giant squid live only in deep, cold water because their blood is incapable of carrying oxygen effectively at higher temperatures.Full Answer >