[DOC] [TLE] Shark Savers :: Shark Biology Primer [PAR] They don't have even one bone in their body, but they sense electricity, ... 
Chondrichthyes, the fish has to have a skeleton made of cartilage, not bone, ... 
Skates and rays, who are related to sharks, usually differ in they are flattened or 
disc shaped. .... White muscle doesn't require an oxygen-rich blood supply and 
works by... [DOC] [TLE] Nerdfighteria Wiki - Why Don't Sharks Have Bones? [PAR] Aug 11, 2014 ... Sharks and rays and skates are probably the most complex ... and scales and 
chambered hearts and a skeleton made out of cartilage. ... Now sharks might look 
like just another fish to you, but bony fish are ... So we've gone some way in 
discussing HOW sharks can survive without bone, but that doesn't... [DOC] [TLE] Types of Shark Fossils: Parts of Sharks that fossilize: Fossilguy.com [PAR] Because sharks are made of cartilage and not bone, it is a common 
misconception ... If a shark has 40 or 50 teeth in its front dentition, and that 
dentition is ... Cutting teeth are usually triangular in shape and have serrations, 
like a steak knife, ... of vertebra) are the densest part of the shark skeleton and 
sometimes fossilize. [DOC] [TLE] Shark Anatomy - Ocean of Know [PAR] Like rays, shark skeletons are made of cartilage. ... A shark has several pairs of 
gills on either side of its head, unlike other fish who only ... The bones of a fish 
are made mostly of calcium, but a shark doesn't really have any bones. ... the 
Nurse Shark, even have some extra smellers called nasal barbels, which stick 
out near... [DOC] [TLE] How many bones are in a shark? - Ask a scientist [PAR] Oct 21, 2012 ... That doesn't mean a shark doesn't have a skeleton however. ... Sharks and other 
cartilaginous fish (including skates and rays) have skeletons made of cartilage 
and connective tissue. ... at least someone has some sense ... formed then its 
teeth and many other part like fins its please reply on 7677657632. [DOC] [TLE] Sharks | Basic Facts About Sharks | Defenders of Wildlife [PAR] Research has shown that massive depletion of sharks has cascading effects 
throughout the ocean's ... Sharks belong to a family of fish that have skeletons 
made of cartilage, a tissue more flexible and lighter than bone. ... Some species, 
like the bull shark, are even known to swim in salt, fresh and brackish waters. [DOC] [TLE] Cartilage in shark skeletons (Page 1) - Fishes (Including Sharks ... [PAR] Why are sharks made of cartilage and not bone? ... the 'Batoids' evolved from a 
more typical sharky ancestor, to form the skates and rays. The Chondrichthyes 
have a cartilaginous, rather than a bony skeleton because they are ... As has 
recently been pointed out in response to a different questions, we are... [DOC] [TLE] Sharks and Rays | Answers in Genesis [PAR] Sep 1, 2002 ... Aside from their skeletons, the members of the Chondrichthyes class also ... steps 
on a ray, causing the creature to reflexively strike out with its tail. ... Rays have 
flattened disk-like bodies with five gill exit openings and their .... prove common 
descent, but when this doesn't work for other reasons, why, there... [DOC] [TLE] What types of fish are there? [PAR] Sharks don't have a single bone in their body, but they do have skeletons, ... that 
look like rabbits) all have skeletons made up of cartilage instead of bone. ... to 
make them, float or sink or get just enough air in so that the diver doesn't float or 
sink. ... a fish has in its gills, equally a fish can't use its gills to breathe air since 
out of... [DOC] [TLE] How many bones are in a shark's body? - Quora [PAR] None! A shark doesn't have any bones in it's body. That doesn't mean a shark 
doesn't have a ... That doesn't mean a shark doesn't have

Question: Like a shark, a ray doesn't have bones; it has a skeleton made out of this
Answer: cartilage