If you want to continue studying these creatures, you can do so by using the lesson titled Fiddler Crab Facts: Lesson for Kids. You will find out: How big fiddler crabs grow Where fiddler crabs live What happens if a fiddler crab's claws get damaged Practice Exams You are viewing ...
Fiddler crabs are a kind of crab that can be found on some beaches. This lesson will teach you about fiddler crabs, what they look like, how they...
The meaning of FIDDLER CRAB is any of several genera (such as Austruca, Leptuca, or Uca) of burrowing crabs in which the male has one claw that is greatly enlarged.
To find out, biologists kept crabs in a dark room for two months. Even without daylight, the crab’s skin colour continued to change exactly on time. This characteristic probably developed gradually in answer to the daily rising and setting of the sun, to help protect the crab from sunlight...
听力原文: The fiddler crab is a living clock. It indicates the time of the day by the color of its skin, which is dark by day and pale by night. The crabs changing skin color follows a regular twenty-four hour cycle that exactly matches the daily rhythm