ostrich , They have long,strong legs that enable them to run quickly , prairie dogs, They have strong paws for digging burrows, sloth, they have long claws help it to hang from tree branches , blue jay, they have curved feet help it grip small branches , fish, they have smooth bodies and strong tails to swim quickly , elodea, they are very flexible plant , flowing water is less likely to break it, pond turtle , strong swimmers, hold their breath for long periods of time , their dark color allows them stay hidden in dark, cattails, they have strong and stiff stems , water insect , they able to hold on tightly to water plants and burow into the soil at bottom of the stream , catfish, have whiskers that sense chemical in the water to help them find food in the dark, lizard , they have scales help it keep water inside its body , jack rabbit , they have large ears to release body heat, emperor penguin , black feather on the backs to obsorb heat from the sun, arctice hare, they have tucked ears to keep from losing body heat.

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