Ten fun facts about Crabs
Fact 1
Crabs live on land and in all the waters of the world and especially in the tropical regions. They spend most of their time in freshwater.
Fact 2
They have eyes on short stalks and a hard protective carapace or covering of bone or chitin which covers the inner organs.
Fact 3
The lifespan of crabs is in the range of 8 to 13 years.
Fact 4Males have larger claws than female crabs. The females’ abdomen is wide and round compared to the slender abdomen of males.
Fact 5Male crabs can be differentiated by looking underneath the shell. Females have a dome whereas the males have a phallic exterior.
Fact 6They walk in to one side and some even walk backwards. The claw of crabs easily grows back if they lose one. The swim paddles help them swim.
Fact 7The exoskeleton of the crabs protects them from predators and provides support for their bodies. They are also arthropods and have segmented appendages. Crabs communicate by drumming their claws or flapping their pincers.
Fact 8They are omnivorous and feed predominantly on algae. Crabs teeth are in their stomachs. Some species consume bacterial, crustaceans, worms, mollusks, fungi and detritus.
Fact 9Crabs are decapods, which means they have ten limbs. The collective name for a group of crabs is a cast.
Fact 10Babies of crabs are called hatchlings.
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