Crabs’ food

Crabs usually eat algae. Crabs are omnivorous, meaning that they will eat both plants and other animals for sustenance.

Various species of crab have slightly different diets. They have a very strong digestive system that permits them to eat fungi, mollusks, bacteria, worms and even other crustaceans, such as shrimp or barnacles. In times of desperation, they have been known to eat the offal from the sea floor, which can include dead and decaying animals.

Like most omnivores, crabs require a balanced diet to maintain the highest degree of health and reach their maximum growth potential. Their systems need both the protein found in meat as well as the vitamins present in undersea vegetables to sustain quality digestion.

Why do crabs walk sideways?

Well, the simple answer is because it’s the way their knees bend. So, if you think about our knees, they bend forwards and that allows us to take step forwards whereas crabs, their legs are on the side and their knees bend outwards, so they can only move sideways. The more interesting answer is taking into account, of course, evolution. We’ve evolved to walk forwards. Most nature animals walk forwards because you can see where you’re going better. But for crabs, there must be a reason why it’s okay for them to walk sideways.

They spend a lot of their life buried under the sand and they’ve developed these kind of long, flat bodies that make it very easy for them to sort of squiggle under the sand and hide there. Having their legs on the side kind of fits in with that elongated shape. They also don’t really need to walk that fast – they’re scavengers. They don’t chase prey very much. So actually, they don’t need to be great runners and being able to hide has been more useful for them.

Amazing Wolf Facts for Kids

A list of the top thirty most interesting facts about the largest members of the dog family,wolves. If you love these animals, you love this!

1. Wolves were once the most widely distributed land predator the world has ever seen. The only places they didn’t thrive were in the true desert and rainforests.
2. Among true wolves, two species are recognized: Canis lupus (often known simply as “gray wolves”), which includes 38 subspecies, such as the gray, timber, artic, tundra, lobos, and buffalo wolves. The other recognized species is the red wolf (Canis rufus), which are smaller and have longer legs and shorter fur than their relatives. Many scientists debate whetherCanis rufus is a separate species.
3. Immense power is concentrated in a wolf’s jaw. It has a crushing pressure of nearly 1,500 pound per square inch (compared with around 750 for a large dog). The jaws themselves are massive, bearing 42 teeth specialized for stabbing, shearing, and crunching bones. Their jaws also open farther than those of a dog.
4. Wolves are excellent hunters and have been found to be living in more places in the world than any other mammal except humans.
5. The wolf is the ancestor of all breeds of domestic dog. It is part of a group of animals called the wild dogs which also includes the dingo and the coyote.
6. When the pack kills an animal, the alpha pair always eats first. As food supply is often irregular for wolves, they will eat up to 1/5th of their own body weight at a time to make up for days of missed food.
7. Wolves have two layers of fur, an undercoat and a top coat, which allow them to survive in temperatures as low at minus 40 degrees Celsius! In warmer weather they flatten their fur to keep cool.
8. A wolf can run at a speed of 65 kilometres per hour during a chase. Wolves have long legs and spend most of their time trotting at a speed of 12-16 kilometres per hour. They can keep up a reasonable pace for hours and have been known to cover distances of 90 kilometres in one night.