animals that don't swicth their shell?
931786
Lobster.  Crab.  Oysters.  Clams.  Mollusks.  Scallops.  Shrimp.  Krill.  Barnacles.  Crayfish.
87417
no. jackrbbits and cottontails don't.there may be others.
708537
Other than dinosaurs? \n\nMammoths, Mastadons, Giant Sloth, Sabertooth tiger, Passanger Pigeon.
543748
No, but all the small creatures running like hell from it do.  Particularly the one squirrel that didn't run quite fast enough.
677775
There horses cant swim and drag them through the water????
221449
Not really. You can get them to do what you want them to do with some sort of "tricks", but for the most part, you really can't train them in the sense you can train a mammal (or bird for that matter.)
392918
Well, not exactly. In fact, these are a whole lot bigger. BUT, they're also a whole lot cleaner and friendlier. Hmm, I can tell you're not convinced yet. Well, for a start, they're wingless, so they can't fly at you or terrorize the dog. Secondly, they don't have those little suckers on their feet, so they can't climb out of their tank and all over you as you sleep. Still not happy? Well, they're big, yes, but they're ponderously s l o w . . . so they won't dart this way and that without warning like less user-friendly insects. Oh, and did I mention - they're clean and don't carry any diseases. Er, you'll just have to trust me on that one.
172255
Hedgehog.\n\nAll the softest creatures have the hardest, most-spiny shells.
706126
Yes, there are actually quite a few insects and animals that don't drink water.  They get the water they need from the food and plants that they consume.  Very handy for desert animals.
625869
Turkeys are not suited for water, although ducks are suited for water.\n\nDucks are balanced to rest on water.\nTurkeys are not.\nDucks have webbed feet.\nTurkeys do not have webbed feet, therefore can not propell themselves as gracefully as a duck.
128848
A few of many.\n\n1) Nocturnal habits. By minmising activity during the hottest parts of the day less water is lost to cooling, in addition to avoiding the high temperatures.\n\n\n2) Burrowing. Almost everysmall desert animals burrows> But many large animals also burrow in the desert. Things like warthogs, spotted dogs, wombats and hyaenas all burrow. Burrowing is a way of avoiding the sun. In addition the air temperature below the ground is always fairly constant, menaing it is cooler by day and warmer at night. The burrow also traps any moisture the animal breathes out or loses to sweating, slowing further loss.\n\n3) Seasonal activity. Most deserts have distinct wet and dry seasons. Many desert animals like shrimp or frogs will will hibernate in some form through the dry part of the year and only reemerge when it rains.\n\n4) Migration. Many desert animals are migratory or nomadic. This allows them to follow the available water and food. Animals like kangaroos, wildebeest, camels and bison are all nomadic or migratory in desert environments.\n\n5) Evolutionary adpation. This is a grab bag that covers all sorts of things. For exmaple many desert animls have highly efficient kidneys so they don't lose much water in urine. Camels have specially shaped blood cells that won't clog up their veins when their blod thickens as they dehydrate. Sidewinder snakes have evolved a method of moving over hot shadeless ground that minimises the amount of that they absorb. And so on.
685971
i do not know even what you are all talking about? some kind of animals? do you mean chinchillas? i like guinea pigs.
291676
That's a great question!\n\nMy first thought was No, but I googled and found a great piece on worm hearts (see link below).\n\nIt turns out they have something that does a similar job, but is not a heart like we mammals have. Follow the link below for all the details.
728227
All animals move at some point in their life.  However, animals like sponges, hydras, anemones and coral are stationary in their adult form.
295910
I am willing to bet that you are looking for the Elephant.  There are many sites on the web which have stated that the elephant is the only mammal which can not jump.  This is NOT the truth.\nJust on the Web alone there are several others listed including the okapi, guinea pig and raccoon who are also reported as not being able to jump.  (see references).\nIn the same class as the elephant, both Hippopotamus and Rhinoceroses come closer to skipping than jumping.  Like the elephant, their body mass is too great in relation to their mass.\nIn addition, all bats have weak legs and usually have trouble walking, let alone jumping.\nIt has been recorded that sloths move too slow to jump.  Plus they seldom climb down out of their trees.\nGiraffes are known to run, but apparently always have one “foot on the ground.”  Due to their neck structure, it may not be possible for them to jump in the usual meaning of the word.\nDue to their odd physical shapes and relatively slow speeds, echidna (spiny anteater), \nduck-billed platypus and koala might also be listed among the non-jumpers.\nFinally, there are the non-land mammals most of which can come at least part way out of the water, but none have legs and by definition, can not jump.  These would include whales, porpoises, dolphins, manatees and maybe even sea lions.
132762
mammals, reptiles hav vocal cords,,, others dont!!!
409912
Hedgehogs\n\nLive throughout Europe, Asia, and Africa. Their spines keep them safe from most predators.\n\nCUTE