Shark

The stomach produces an acid that is strong enough to dissolve metal. Large bones and other indigestible objects are prevented from going past the stomach… Read More »Do Sharks Regurgitate Their Stomach?

They have no ordinary urinary tract, so they concentrate urea in their blood and excrete it through their skin. Thus, sharks, along with most other… Read More »How Do Sharks Get Rid Of Urea?

urea. They have no ordinary urinary tract, so they concentrate urea in their blood and excrete it through their skin. Thus, sharks, along with most… Read More »What Waste Do Sharks Excrete?

So how do sharks excrete waste? Once the shark has digested its food in the spiral intestine and colon, whatever is left passes to the… Read More »How Do Sharks Pass Waste?

It is extremely toxic. But there is an exception. Far from being repelled by ammonia, sharks are actually attracted to it. The longtime assumption has… Read More »Do Sharks Smell Ammonia?

Researchers found high concentrations of mercury, arsenic, and lead, in blood samples obtained from Great white sharks in South Africa. The samples had levels that… Read More »Do Sharks Have Toxic Blood?

A shark’s cranium is a single compact cartilaginous block which encloses the brain, olfactory, and auditory capsules. Jaws are loosely attached to it. Without hard… Read More »Do Sharks Produce Red Blood Cells?

Sharks are attracted to blood in the water. While they can smell human urine, they aren’t particularly interested in it. Any tasty, smelly odorant is… Read More »Can Sharks Detect Urine?

Shark intestines are short and compact. The surface area of the intestine is increased by internal valves, or coils, that can take any of several… Read More »How Do Sharks Digest Food?

You might wonder do sharks poop through their skin, but this isn’t the case. All the shark’s poop comes out via the cloaca. Do sharks… Read More »Do Sharks Poop Through Their Skin?