What is a hermit crab? There are over 800 ... coming partly out of their shells so the male can transfer a sperm packet to the female, which fertilizes her eggs. She later carries her eggs to ...

Knowing that there's a difference in size between the male and female claws helps us understand the behaviour and ecology of the yeti crab family – which we know little about because they are a ...

Researchers also noticed several “biological oddities” on the hermit crab’s eyestalks and genitalia. Two crabs had both male ...