Crabs have a shell (actually a carapace) that is solid and rigid and it doesn't grow with the crab so every so often then split it open and crawl out of it to grow a slightly bigger one. What you are finding then are the empty discarded carapaces of growing crabs.
mud crabs, sand crabs, ghost crabs, blue swimmer.
Why are female crabs called jenny
Mostly asian shore crabs, Mud crabs,Rock crabs, Donut Crabs and Spider Crabs. I believe there are no freshwater varieties.
Mangrove crabs feed on phytoplankton as well as zooplankton. Their real name is Scylla serrata and they are often called mud crabs in addition to mangrove crabs.
yes because in other ways you can dump water on sand to make out side the water
becaus they die
Yes
Apparently it's either a cast of crabs or a dose of crabs. Google it for more info.
Penguins, seabirds, seals, Marine Iguana, some crabs, mud skippers.
A species of crab that lives in muddy areas.
crackling sounds
It is not a herbivore as it eats small prawns