Animals must have special adaption or advantages to give them a better chance of survival. discuss 4 examples?

axolotyl exhibits paedomorphosis, can spend entire life in water, avoiding land predators.
giraffe has long tongue can more remove leaves off of thorny tree.
baleen wale has baleen filter out water krill more efficiently.
sponge tastes bad not eaten.

have problem question, though. animals not have have special adaptation or advantage. darwin's theory of evolution not survival of fittest, says traits may make animal better able compete scarce resources can produce more offspring. example of not having advantage on other animals eating different food. if animals of 1 island eat berries, there few berries. but, if 1 animals decides eat insects, has no competition, has better chance of survival. sure, there changes digestive system eat insects more efficiently, later.
advantage decreasing competition, not becoming better animal. , survival not concern. creating more offspring end want achieve. having sperm can better survive acidic environment of vagina adaptation not increase survival increases number of progeny, more important. though, admit, cannot reproduce if dead, anyways.

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