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anhydration    
脱水; 干化

脱水; 干化


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  • Snake | Description, Facts, Types | Britannica
    Snake, any of more than 3,400 species of reptiles distinguished by their limbless condition and greatly elongated body and tail They are classified with lizards in the order Squamata and represent a lizard that, over the course of evolution, has undergone structural reduction, simplification, and loss as well as specialization
  • Snake - Scales, Venom, Slithering | Britannica
    Snake - Scales, Venom, Slithering: Snakes have an elongated body and tail, and no limbs Their body is usually slender, the body shape correlated with the activity level The vertebral column has more vertebrae than any other living animal—up to 600 Snakes are covered with scales, and their colors and color patterns are often bright and sometimes spectacular
  • List of snakes | Venomous, Nonvenomous, Constrictors, Pythons, Cobras . . .
    There are nearly 3,000 species of snakes distributed nearly worldwide The following is a list of some of the major genera and species of snake, organized alphabetically by family Sometimes listed as a subfamily of the boa family (Boidae) Sometimes listed as a subfamily of the boa family
  • snake - Kids | Britannica Kids | Homework Help
    A snake is a reptile with a long, slender body but no arms or legs Snakes are closely related to lizards There are about 2,900 species, or kinds, of snake The best-known…
  • snake - Students | Britannica Kids | Homework Help
    A snake will usually bite a human only when frightened or threatened Also, only a small portion of snake species—about 600—produce venom Of those, only about 200 are able to kill or do significant damage to humans Venom is an adaptation used mainly to immobilize prey, or keep the prey from moving, rather than for defense
  • Food Chain, Birds, Mammals, Reptiles - Britannica
    Although snakes are predators, they are also themselves eaten by other creatures, including birds, mammals, and other reptiles
  • 9 of the World’s Deadliest Snakes | Britannica
    The saw-scaled viper (Echis carinatus) may be the deadliest of all snakes, since scientists believe it to be responsible for more human deaths than all other snake species combined Its venom, however, is lethal in less than 10 percent of untreated victims, but the snake’s aggressiveness means it bites early and often
  • Hognose snake | Behavior, Size, Facts | Britannica
    Hognose snake, any of up to five species of North American nonvenomous snakes belonging to the family Colubridae Named for its upturned snout, which it uses for digging, the hognose snake strikes at perceived threats with a loud hiss but rarely bites If the bluff fails, it rolls over, writhing, and feigns death
  • Do Snakes Sleep? | Eyes Open, Winter, Sleep Patterns, Dormancy . . .
    Snakes do sleep, but their sleep patterns are different than those of warm-blooded animals such as mammals and birds Snakes, as cold-blooded animals, rely on external stimuli and temperature to regulate their sleep cycles





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