Most teenagers will undergo lots of changes before reaching adulthood.

In Munida quadrispina, the FAC cluster of fast flexor motor neurons was lost with no visible change in tailflipping behaviour ( Wilson & Paul, 1987 ).

Their deaths were sobering not merely because of the searingly unbearable wrench of losing those two wonderful people, but because it left me exposed as rudderless.

the postorbital scales of some fishes and reptiles