Humans love to take liberties when we talk about our heights. But Afruca tangeri fiddler crabs don’t have that luxury. Looking and listening in on the members of this species as they tried to attract mates, a team of researchers found that the males’ mating songs are shaped by their size, and are thus accurate signals of their fitness as mates, according to a press release, at least from the perspective of female fiddler crabs.
Publishing their findings in a study in the Journal of Experimental Biology, the researchers say that their results reveal what information male fiddler crabs share in their songs, as well as how well they share it.
Read More: How Do Whales Hear Their Songs and Other Sounds If They Don't Have Ears?