You may notice that spiny lobsters don’t have claws! Instead of claws, these crustaceans have an extra pair of walking legs which make them great at scaling overhangs and crevices of the caves in which they live.
These lobsters are nocturnal- they come out from their caves at night to forage or hunt. Having an excellent sense of smell is important to creatures who hunt in the dark and cannot rely on their eyes.
In addition to 2 large antennae that are used to feel their way around and navigate through caves, these crustaceans have several, smaller “antennules” that sense movement and detect scent in the water.