Do mammals have lungs or gills?

Whales cannot breathe underwater because they are mammals and not fish. This means that their breathing organs are lungs, rather than gills. So, like humans, whales need to come to the surface to take a deep breath of fresh air and when they are underwater they hold their breath. Fish also need oxygen to breathe.
A.

What fish breathe through lungs?

The lungs of mammals would not work very well for a fish, because one breath underwater would fill them with fluid and make them useless. Nonetheless, fish need oxygen to breathe, too. In order to remove oxygen from the water, they rely on special organs called "gills." Gills are feathery organs full of blood vessels.
  • Do amphibians have lungs or gills?

    Sometimes more than a quarter of the oxygen they use is absorbed directly through 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.
  • Do insects have lungs?

    Instead of lungs, insects breathe with a network of tiny tubes called tracheae. Air enters the tubes through a row of holes along an insect's abdomen. The air then diffuses down the blind-ended tracheae. Since the biggest bugs have the longest tracheae, they should need the most oxygen to be able to breathe.
  • Do killer whales have gills?

    Fish use their gills to take oxygen from the water that they live in. But people get the oxygen we need by breathing air, using our lungs. Whales and dolphins use their lungs to breathe air also. That's one reasons why they come to the surface of the ocean.
B.

What kind of animals have lungs?

Respiratory System - All About Breathing. Your respiratory system is all about exchanging gases with the environment. Some animals such as amphibians are able to exchange gases through their moist skin. Fish have gills while mammals, birds, and reptiles have lungs.
  • Do all mammals use lungs to breathe?

    Mammals are the group of animals that breath air using lungs, give birth to live young (rather than laying eggs), and feed their young with mother's milk. All animals, including people, need oxygen, a chemical found in the air and in water. Fish use their gills to take oxygen from the water that they live in.
  • Do insects have lungs?

    Instead of lungs, insects breathe with a network of tiny tubes called tracheae. Air enters the tubes through a row of holes along an insect's abdomen. The air then diffuses down the blind-ended tracheae. Since the biggest bugs have the longest tracheae, they should need the most oxygen to be able to breathe.
  • What animals don't breathe air?

    There are some really simple animals like jellyfish, flatworms, and roundworms that can diffuse oxygen through their very thin membranes instead of actively breathing. I think amphibians and annelids (earthworms) breathe through their skin but have to be kept moist and insects use holes (spiracles) in their sides.

Updated: 20th September 2018

Rate This Answer

3 / 5 based on 1 vote.