Complete Answer:-Aquatic animals such as molluscs, crustaceans, insects, fish, and amphibians are known to possess 'Gil' or gill-like organs for respiration.

What animals that have gills?

• Giant oceanic manta ray (Mobula birostris) ...
• Whale shark (Rhincodon typus) ...
• Pouched lamprey (Geotria australis) ...
• Giant clam (Tridacna gigas) ...
• Nudibranchs. ...
• Marine polychaetes. ...
• Big blue octopus (Octopus cyanea) ...
• Yeti crab (Kiwa hirsuta)

What are gills examples?

The definition of a gill is an organ for breathing on an underwater creature, or the red flesh hanging below the beak of a bird. An example of a gill is the organ that a goldfish uses to breathe water in order to get oxygen. ... Gills produce the spore-bearing structures known as basidia.

What are physical gills?

Physical gills are a type of structural adaptation common among some types of aquatic insects, in which atmospheric oxygen is held within an area into which the spiracles open.

How do fish respire?

Fish take water into their mouth, passing the gills just behind its head on each side. Dissolved oxygen is absorbed from—and carbon dioxide released to—the water, which is then dispelled. The gills are fairly large, with thousands of small blood vessels, which maximizes the amount of oxygen extracted.

How do fish breathe using gills?

Is there a mammal with gills?

Are there any mammals that have gills along with lungs? Some animals are capable of breathing both in water and on land but do not have functional lungs. ... Mammals have lungs as their breathing organs and not gills. Though animals like lungfish and salamanders have both lungs and gills, they aren't mammals but fish.

Do dolphins gills?

Dolphins are mammals, not fish.

Unlike fish, who breathe through gills, dolphins breathe air using lungs. Dolphins must make frequent trips to the surface of the water to catch a breath. The blowhole on top of a dolphin's head acts as a "nose," making it easy for the dolphin to surface for air.

Do frogs gills?

Frogs, like salamanders, newts and toads, are amphibians. Most amphibians begin their life cycles as water-dwelling animals, complete with gills for breathing underwater. ... Frogs are no exception to this process and are able to breathe through their lungs once they reach adulthood.

Do turtles have gills?

Just like other reptiles, sea turtles have lungs. They have a slightly different structure than mammalian lungs, but work just as well when it comes to exchanging gases (oxygen and carbondioxide). The lungs are located right under the carapace and the vertebral column.

Do snakes have gills?

Eels are part of the fish family and have gills for breathing. Sea snakes do not have gills but lungs instead and need to go to the surface for air. Sea Kraits are one of the few sea snakes that go to land to lay their eggs while most others, like the Olive sea snake will give birth in the water.

Do amphibians have gills?

Most amphibians breathe through lungs and their skin. ... Tadpoles and some aquatic amphibians have gills like fish that they use to breathe. There are a few amphibians that do not have lungs and only breathe through their skin.

Does a whale have gills?

Whales and dolphins are mammals and breathe air into their lungs, just like we do. They cannot breathe underwater like fish can as they do not have gills. ... This allows them to take breaths by exposing just the top of their heads to the air while they are swimming or resting under the water.

Do octopuses gills?

The reddish-brown body of the Giant Pacific Octopus consists of eight arms and a “mantle,” which extends from the head like a bag and has two sets of gills. ... The gills allow an octopus to breathe in oxygen and then exhale through a tube called a siphon.

Do turtles breathe underwater?

Many of the aquatic turtles that live in northern Illinois spend the entire winter underwater, but they are still able to get oxygen. Their ability to "breathe" underwater is because of how their metabolism is affected by their body temperature, according to PBS News Hour.

Which animal has fins and gills?

Fish - Fish live and breathe under water. They have scaly skin, fins to help them swim and they breathe through gills.

Which animals have gills and lungs?

Lungfish have a unique respiratory system, having both gills and a lung. It is the only type of fish to have both organs, and there are only six known species around the world.

Where are fish gills?

Gills are branching organs located on the side of fish heads that have many, many small blood vessels called capillaries. As the fish opens its mouth, water runs over the gills, and blood in the capillaries picks up oxygen that's dissolved in the water.

How does a squid respire?

Gills. Squid use oxygen from seawater for respiration. The seawater enters the mantle through the opening near the head, and passes over the gills. Oxygen diffuses from the water into the blood, and is transported to the gill (or branchial) hearts by a network of many blood vessels.

Do crabs have gills?

Like fishes, crabs use their gills to absorb oxygen from water. ... As long as a crab's gills stay damp, oxygen will diffuse from the atmosphere into the water on their gills.

Do crocodiles have gills?

Of all the living reptiles, the 12 modern crocodile (Crocodylus spp.) ... Like all reptiles, crocodiles breathe with lungs rather than gills.

What whale has gills?

No, whales don't have gills; instead they are born with blowholes. Gills are actually a common feature of fish and many other amphibious species, however they are not present in whales or any of the cetacean species (whales, dolphin & porpoises) for that matter.

Where are whale shark gills?

There are five large gill slits on each side of the head region, just above the pectoral fins. Special spongy tissue inside the gill slits that is supported by the shark's gill arches forms a unique filter used in feeding.

Do whales have dorsal fins?

Whales generally have four fins: two pectoral fins (instead of arms), a caudal fin (also called the tail) and a dorsal fin. ... The humpback whale stands out for its long pectoral fins that can reach one third of its body length. It is believed to be the largest appendage in the animal kingdom.

Which of the following amphibians have gills?

Many aquatic salamanders and all tadpoles have gills in their larval stage, with some (such as the axolotl) retaining gills as aquatic adults.

Do amphibians go through metamorphosis?

Most amphibians undergo a unique change from larvae to adults, called metamorphosis. All amphibians are ectotherms (what used to be called "cold-blooded"), a trait they share with invertebrates, fish, and reptiles.