[DOC] [TLE] Sharks - Buoyancy [PAR] Most fish use a swim bladder, filled with gas, to keep them from sinking to the 
bottom of the ocean, ... However, sharks do not have such a bladder. ... However, 
it is has been decided to extract the squalene from vegetable oils in order to... [DOC] [TLE] Swim bladder - Wikipedia [PAR] The swim bladder, gas bladder, fish maw or air bladder is an internal gas-filled 
organ that contributes to the ability of many bony fish (but not ... The cartilaginous 
fish (e.g. sharks and rays) do not have swim bladders. Some of them can control 
their depth only by swimming (using dynamic lift); others store fats or oils with... [DOC] [TLE] How Can Sharks Not Float or Sink? | Animals - mom.me [PAR] For one, bony fish have a specialized organ called a swim bladder that helps ... 
While sharks lack a swim bladder, their liver can provide some of the same 
functions ... Bony fish can adjust their swim bladders more precisely than sharks, 
allowing them more control of their depth ... Float switches help keep your 
aquarium full. [DOC] [TLE] Aqua Fanatic: What is Swim Bladder? [PAR] Without a swim bladder, the fish, with body tissues denser than water, would sink. 
... it can fill with gas to create buoyancy and counteract its own weight. the swim 
bladder ... than bone, so they're more flexible, they also have a HUGE liver full of 
oil. ... however this is not all of the buoyancy needed to keep the shark floating. [DOC] [TLE] The Earth Life Web, Fish Swim Bladder Page [PAR] A swim bladder is a gas filled bag that sits in a fish's body cavity above its guts. ... 
as well as modern cyclostomes, sharks and rays all live without a swim bladder. 
To do this they either have to keep moving all day every day or live on, or at ... the 
lung to breath nature slowly adapted it for its new role as a buoyancy organ. [DOC] [TLE] Shark Anatomy - Ocean of Know [PAR] Sharks have highly sensitive senses, a special liver which helps them to float, 
several rows of teeth, and eyes which aren't so different from yours. ... Bony fish 
have a gas-filled swim bladder which enables them to float in the water, but ... 
Since cartilage is lighter than bone, it helps to keep a shark from just sinking to 
the... [DOC] [TLE] swim bladder | fish anatomy | Britannica.com [PAR] Swim bladder, also called air bladder, buoyancy organ possessed by most bony 
fish. ... organ, enabling the fish to maintain its depth without floating upward or 
sinking. ... In some species the swim bladder contains oil instead of gas. ... Most 
modern fishes have a hydrostatic (ballast) organ, called the swim bladder, that 
lies in... [DOC] [TLE] 1 00:00:02,400 --> 00:00:04,760 The Experimentals! 2 00:00:04,760 ... [PAR] 36 00:01:36,720 --> 00:01:39,880 Oil floats on water, so if you've got a giant ... 40 
00:01:44,480 --> 00:01:47,960 BERNIE: And so a big oily liver helps keep a 
shark ... 45 00:02:00,600 --> 00:02:03,520 a shark has to swim to stop it from 
sinking. ... gas-filled organ 70 00:03:29,320 --> 00:03:32,480 called a swim 
bladder that... [DOC] [TLE] Sharks Demystified (Asian Diver Article) | Richard Smith [PAR] Sharks, like snakes and spiders, are one of those creatures that have the ability ... 
and have an organ known as a swim bladder that is basically a balloon filled with 
air. ... of a buoyant liver and morphology to keep their heavy bodies from sinking. 
... as reef and tiger sharks, also helps them with manoeuvrability and allows for... [DOC] [TLE] Facts about sharks and rays - biology, habits, attacks, and other ... [PAR] Sharks and rays do not have true bones like other fishes. ... A swim bladder is a 
gas filled sack inside the body of bony fishes that allows them to ... Even so, 
sharks sink unless they keep swimming forward. ... Having many exposed gill 
slits probably helps transfer

Question: Sharks have no swim bladder so this oil-filled organ helps keep them from sinking
Answer: Liver