Its name comes from the six pairs of frilly gill slits that line its throat, giving it a distinctive, prehistoric look. Unlike most sharks, the frilled shark has no separate dorsal fin near its tail.

Along the side of the head are gill slits that allow the angel shark to breathe. The positioning of the gill slits represents another important distinction from rays and skates, which have gill ...

The difference between a shark and other fish ... And they have five, six, or seven gill slits per side, not one per side as in bony fish. Some sharks lay egg cases with developing embryos ...

If the shark is actually coming at you and it looks ... Finally, in fact, if a sharks got you in its jaws, the eyes and the gill slits — the five openings behind the eyes — are very sensitive.

Start your dissection with the heart. Make a medial incision on the ventral surface of the head between the gill slits. Remove the skin from the ventral surface then slowly pull away the muscle tissue ...

What features do the coelacanth and the bull shark have in common ... from the water as it passes over the gills. Other fishes have gill slits. Tails: Fish tails also take many shapes.

After diving, the reopening of gill slits and convective heat transfer upon the shark's return to warmer surface waters causes a rapid loss of body heat. In a phone interview, study author Dr. Mark ...