A rounded tail, like that of the angelfish, enables quick bursts of speed to escape predators. Fins: Help a fish move. The top fins are called dorsal fins. If there are two dorsal fins ...

“We can’t build a fish. But we can build a robot that moves ... The UUV has a robotic system that enables the tail fin to move freely in three directions in order to do this.

There are at least 40 known species of flying fish. Beyond their useful pectoral fins, all have unevenly forked tails, with the lower lobe longer than the upper lobe. Many species have enlarged ...

These inverted arc tails may have been the precursor to a “fish” tail. Tom Blake is credited with putting the first fin on a surfboard in 1935 to facilitate steering and is said to have built ...

This jawed fish distant ancestor of terrestrial animals today had both a scaly, fleshy tail and a flexible tail fin, sitting one atop the other. Sallan found these structures were entirely separate.

An orange halo will appear around their tail spot, and their fins and jaw will turn bright green or turquoise. Bowfin are predators that feed primarily on fish, although crawfish, frogs and shrimp ...

just about at the base of the caudal fin, or tail … Seen in shallow water, the tail of this fish assumes a beautiful shade of blue. In body color, the reddish cast of the scales is plainly ...