How are lobsters and crabs similar?

Lobsters and crabs share many similarities, as they are both members of the same order: Decapoda. This means they have ten legs, including a pair of large claws. Here are some key similarities:

* Exoskeletons: Both lobsters and crabs have hard, protective exoskeletons made of chitin.

* Molting: They both shed their exoskeletons periodically to grow larger. This process is called molting.

* Antennae: Both have two pairs of antennae used for sensing their environment.

* Habitat: They are both found in marine environments, primarily along coastlines.

* Diet: They are both omnivorous, meaning they eat a variety of foods, including plants and animals.

* Reproduction: Both reproduce sexually, with females laying eggs that hatch into larvae.

However, there are also some notable differences:

* Body shape: Lobsters have a long, cylindrical body, while crabs have a broad, flattened body.

* Tail: Lobsters have a prominent tail that they can use for swimming and defense, while crabs lack a tail.

* Claws: While both have claws, lobster claws are typically larger and more powerful than crab claws.

* Movement: Lobsters primarily walk or crawl along the seafloor, while crabs can also walk sideways and swim.

Overall, lobsters and crabs are closely related crustaceans with many shared features. However, they also have distinct characteristics that allow them to occupy different ecological niches.