Sexy Shrimp swaying back and forth

The tiny Sexy Anemone Shrimp, up to 2 cm in size, is named for its unusual body movements, spending the day swaying its abdomen back and forth. They can host in a variety of anemones, such as carpet anemones, condy anemones, and bubble tip anemones, setting up residence within anemones for protection and performing a cleaning service in return. Sexy shrimp are known to vibrate their abdomen to signal or warn others.
 
Scientific Name: Thor amboinensis