A new study using high-speed video shows for the first time that the reef fish Zanclus cornutus (Moorish idol) and the related surgeonfish can move their jawbones sideways as well as up and down. This ...

A trade-off between tooth size and jaw mobility has restricted fish evolution, Nick Peoples at the University of California Davis, US, and colleagues report in the open-access journal PLOS Biology.

WASHINGTON (Reuters) - A bottom-dwelling, mud-grubbing, armoured fish that swam in tropical seas 423 million years ago is fundamentally changing the understanding of the evolution of an indisputably ...

Whole skeleton of Dipterus, an extinct lungfish from the middle Devonian period. Specimen (UMMP 16140) from the University of Michigan Museum of Paleontology. ANN ARBOR—If you're reading this sentence ...

The first icefish was discovered in 1927, swimming in the frigid waters of the southernmost extreme of the Earth, the ...

WASHINGTON (Reuters) - Let's face it. It's easy to take for granted that mammals, birds, reptiles, amphibians and fish - vertebrates just like people - have a face. But it has not always been the case ...

Some reef fish have the unexpected ability to move their jaws from side to side, biologists have discovered. This ability -- which is rare among vertebrate animals -- allows these fish to feed rapidly ...

Some reef fish have the unexpected ability to move their jaws from side to side, biologists at the University of California, Davis have discovered. This ability – which is rare among vertebrate ...