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A crab has evolved to move sideways in response to its environment. Its body is relatively flat with eyes that face forwards on stalks. It lives in rock crevices and moves sideways across the surfaces of coral, etc with its back against the rock face, therefore always facing outwards to possible threats from predators, other crabs, etc. When danger appears it can easily conceal itself in gaps between rocks for protection where necessary. I have seen crabs do this on many occasions as a Scuba diver and this explanation seems very reasonable to me.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoWiki User
∙ 11y agosome do and some don't it depends on what kind of crab it is.
Wiki User
∙ 12y agoyea the do apperantly
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Why do fruit bats sleep up side down?
fruit bats sleep upside down because all bats sleep upside down and a fruit bat is a bat
Why bats sleep hanging upside-down?
Bats sleep hanging upside-down because it will directly fly when it wakes up!
What position do bats sleep in?
upside down
Do sloth sleep upside down?
check your answer
Do monkeys sleep upside down?
No, monkeys do not sleep upside down. Monkeys make beds out of leaves, high up in the limbs of tall trees.
Do kangaroos sleep upside down?
No they do not sleep upside down.
Do mystery snails sleep upside down?
A Healthy snail doesn't flip upside down to sleep usually. so A unhealthy snail would sleep upside down.
Can hermit crabs molt upside down?
yes
Why do fruit bats sleep up side down?
fruit bats sleep upside down because all bats sleep upside down and a fruit bat is a bat
Why bats sleep hanging upside-down?
Bats sleep hanging upside-down because it will directly fly when it wakes up!
Does the pray mantis sleep upside down?
No it is not normal for a praying mantis to hang upside down
What position do bats sleep in?
upside down
Do sloth sleep upside down?
check your answer
Do monkeys sleep upside down?
No, monkeys do not sleep upside down. Monkeys make beds out of leaves, high up in the limbs of tall trees.
Do manatees sleep upside down?
no thay sleep on there belly
Can you sleep upside down?
I will do an experiment with myself tonight. My PURPOSE is to learn if people can actually sleep upside down. REASON: I want to figure out if people can really sleep upside down.hypothesis: I bet people can sleep upside down peacefully.experiment: I will sleep upside down tonight and come back tomorrow and type what happened.
Why bats hang upside down?
they sleep up side down
