Specimens have large eyes and claws, as well as smooth bodies. The species comes in two color forms: Blue form crayfish are a ...

Normal lobsters look more reddish-brown, but a blue and yellow colour is visible closer to their joints, says Lemonde-Landry. That's because the American lobster species have a red and blue pigment, ...

A new species of crayfish found in Washington and Canada has been identified, researchers said. Getty Images/iStockphoto A graduate student came across a reddish-brown creature with claws that was ...

Rusty crayfish, an aquatic nuisance and an invasive species, has been discovered in a Larimer County river south of Estes Park, according to Colorado Parks and Wildlife. This is the first time the ...

Normal lobsters look more reddish-brown, but a blue and yellow colour is visible closer to their joints, says Lemonde-Landry. That's because the American lobster species have a red and blue ...