Dogfish

boney fish. Swimbladders are only found in boney fish. Sharks and rays can maintain buoyancy in water by using oil within their body. Not all… Read More »What Fish Has Swim Bladders?

Osteichthyes (bony fish) use swim bladders that are filled with oxygen taken in by their gills. The more air in the swim bladder the more… Read More »Which Animals Use Swim Bladder?

Pugs have 20 teeth in their upper jaw and 22 in the lower mandible. Having more teeth on the bottom jaw than the top causes… Read More »Do Pugs Have Two Rows Of Teeth?

Mudpuppies are common throughout their range and have no special conservation status. However, habitat loss and pollution is putting pressure on some local populations. Is… Read More »Are Mudpuppies Rare?

The most common teeth to be retained in the mouth are the canines. If many teeth are retained then the condition is called “shark teeth”… Read More »What Is Shark Mouth In Dogs?

Mudpuppies are fun to watch and listen to, as you can sometimes hear the small squeaking noise or “bark” that earned them their name. These… Read More »Can You Hold A Mudpuppy?

Two eggs are laid every 5/6 days during the breeding season between November and July and after 5-11 months(according to water temperature) the young hatch… Read More »Do Dogfish Lay Eggs?

They mainly eat small, schooling pelagic fish such as herring, and small invertebrates such as shrimp, crab, and squid. They are preyed upon by larger… Read More »What Do Dog Sharks Eat?

Spiny dogfish have a large epicaudal lobe, lack anal fins, and swim using the body and caudal fin in an anguilliform mode of locomotion (Thomson… Read More »How Does A Dogfish Swim?