Did you know

Eyespots on damselfishes are not always a distraction for the predators? Scientists have discovered that the eyespots on adult ambon damselfishes are actually deceptive makeups! The black eyespot is commonly found on juvenile ambon damsels, and as they reach maturity, they lose the eyespot. It is like having a birthmark that disappears after a person reaches the age of 18. But, some ambon damsels are found to keep this birthmark after they become adults. On top of this, they keep a body shape that is close to a juvenile or immature female. Like most fishes, these small damselfish turn into males after a certain age. Yet, some male ambon damsels decides to keep their eyespots! So the next time you see a yellow damselfish with an eyespot on its fin towards the tail region, don’t immediate decide its gender! It might be an adult damselfish that had makeup on! Gagliano M, Depczynski M (2013) Spot the difference: mimicry in a coral reef fish. PLoS ONE 8(2): 355938 [doi:10.1371/journal.pone.0055938]

by Austin Lin

2015-10-27T17:04:42+00:00

by Austin Lin

Eyespots on damselfishes are not always a distraction for the predators?

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