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First of all we have to take into account the different phyla, and then give an example with a short explanation to go with each.
Mammals use blubber at times for minor buoyancy, but this primarily comes from the air stored in their body.
Fish on the other hand have what's called an air bladder which receives air from the blood; the amount of air is constantly regulated according to pressure and depth. How air, mainly oxygen because of nitrogen's volatility, is removed by the hemoglobin by a gas gland that produces lactic acid allowing the absorption of air into the swim bladder. It's placed near the spine; if the fish rushes to the surface, it risks bursting its bubble.
Most cephalopods have what's called a septa that's incorporated into their internal shell containing nitrogen and slime in a coiled fashion.
Birds such as penguins are buoyant due to the air in their body.
Reptiles float similar to a human's backstroke, but on their belly, keeping their head and back above the water.
Insects for another matter either use surface tension such as pond skippers or setae (dense, thick, bunch of hair) and possibly a plastron.
Finally, some amphibians' weight allows the lungs to keep the body afloat at the water's surface.
Post script
Any other interpretation or edit of this is answer is in direct violation of the answer's true meaning. Other than having knowledge of biology, one also needs knowledge of chemistry and perhaps the meanings of English words before attempting to clean up after another's mistakes.
What else can I help you with?
Do marine biologist help animals?
Marine biologists study marine life, including animals, to understand their behaviors, habitats, and conservation needs. They help animals indirectly by conducting research that informs conservation efforts and policy decisions to protect and preserve marine ecosystems and the species within them.
Why is marine animals important?
roblox keeps marine life alive :D :Problox IS THE BEST
What is a good title for an essay about marine animals?
A Marine life or An aquatic kingdom.
What is the difference between a marine biologist and a veterinarian?
A Veterinarian would physically work with the animals, treat and care for them, and diagnose diseases to promote health in the animal/herd. A marine Biologist, however, studies the animals from afar and tries to figure out the relationships between different ocean species and wildlife
What are animals living in water called?
animals that do not live in water are called mammals unless if it is a dolphin or turtle. amphibian: vertebrates that live life in and out of the water
How do sea lions float or any other marine animal?
Sea lions float at the surface with one or more flippers raised out of the water. It is believed that this behavior prevents them from losing too much body heat in the water. Sea lion and other marine animals float because of their tender or light bones
What are tiny drifting animals in the ocean?
the name given to tiny sea animals and plant that float in the sea.they form the main food of many sea animal
Who are the marine animals?
marine animals are sea toads & more!
Are fish in the sea called marine or maroon animals?
marine animals fyi
Marine animals are found?
In a marine environment.
Why do marine mammals float?
Not all marine mammals float, but the ones that do float because the body of the animal is sitting on the surface of the water and that makes the pressure of the body of the animal float because the body is rising from all the pressure. Hope this helped -stupid factory
How does an oil spill affect the hydrosphere?
because oil is lighter than water it will float, blocking all sunlight to the marine animals. this has nothing to do with the hydrosphere i was just bored
Why do marine vessels float in water?
Marine vessels float in water due to the principle of buoyancy, which is the ability of an object to float in a fluid. The weight of the water displaced by the vessel is equal to the weight of the vessel itself, resulting in a balance that allows the vessel to float. The shape of the vessel also plays a role in determining its buoyancy.
Why do you kill marine animals?
Personally i wouldn't kill marine animals, but some people will to get food or to have fun
What are marine animals with spiny rough surfaces called?
what are marine animals with piny rough surfaces called
What is the study of aquatic animals called?
Marine Biology - a person that studies in this feild is a Marine Biologist
Do marine biologist study the animals they want to?
Yes, marine biologists study the animals they want to understand their behavior, physiology, ecology, and interactions with their environment. By studying these animals, marine biologists can contribute to conservation efforts and better understand marine ecosystems.
