Did You Know?
Some crabs can live on land!
Crab Shells
Crabs have hard shells to stay safe.
Crab Food
Crabs eat plants and tiny fish.
What crabs Does
Crabs walk on sand and rocks.
They dig holes to hide.
Crabs can swim in water.
Some crabs have big claws.
Crabs can change color to blend in.
They make sounds to talk to each other.
More About crabs
Crabs have been around for a long time. They live in oceans and some on land. There are many kinds of crabs. Some are small, and some are big.
Crabs help keep the ocean clean. They eat dead plants and animals. This helps the water stay fresh.
Some crabs can live for many years. They are fun to watch at the beach or in tanks. People love to catch crabs for food!
How Topics Connect
graph TD
A["Crabs (Decapod Crustaceans)"] --> B["Brachyura"]
A --> C["Anomura"]
A --> D["Heavily Armoured Shell"]
A --> E["Convergent Evolution"]
E --> F["Carcinisation"]
A --> G["Polyphyletic Group"]
G --> H["Multiple Evolutionary Origins"]
What Do These Words Mean?
decapod:a type of crustacean with ten limbs
crustaceans:a group of animals with hard shells, like crabs and lobsters
carcinisation:the process of evolving into a crab-like form
polyphyletic:having multiple different ancestors
Brachyura:a group of true crabs
