In a study published Monday in the Proceedings of the National Academy of Sciences , researchers have now identified the first animal that doesn't use oxygen to breathe: Henneguya salminicola, an 8-millimeter white parasite that infects the flesh of Chinook salmon.
I am alive without breath and cold as death. I am never thirsty but always drinking. What am I? Answer: A fish.
One species of salamander lacks lungs, so it breathes by absorbing oxygen through its skin and the roof of its mouth. The diving bell spider is able to breathe oxygen underwater by keeping air bubbles attached to its body with tiny, hydrophobic hairs.
All reptiles, mammals and birds breathe using lungs; in birds there is also a system of air sacs and air spaces within the bones that make breathing more efficient. Insects breathe through branching tubes called tracheae, while arachnids use folded structures known as 'book lungs'.
Abstract. Spiders (Araneae) are unique regarding their respiratory system: they are the only animal group that breathe simultaneously with lungs and tracheae. Looking at the physiology of respiration the existence of tracheae plays an important role in spiders with a well-developed tracheal system.
No because they don't use lungs to breathe. Like most insects, they take in oxygen through openings in their abdomens called 'spiracles' which allows sufficient oxygen to maintain their activity.
Instead of breathing through lungs, earthworms breathe through their skin. That's the reason why we see them so much after a rainstorm. The wet soil inhibits their breathing, which brings the worms to the surface.
Unlike other fish with gills alone, lungfish can surface, take a breath and survive when other fish might be lacking air. In fact, much like many sea mammals, lungfish are obligate air breathers—they have to breathe air above water periodically to survive. A missing link?
Sharks don't have lungs, but they do have to breathe oxygen to survive. Instead of breathing air, though, sharks get oxygen from the water that surrounds them. The concentration of oxygen in water is much lower than in air, so animals like sharks have developed ways to harvest as much oxygen as they can.
What gets whiter the dirtier that it gets? Answer: Chalkboard.
Q: What has 13 hearts, but no other organs? ... ... A: A deck of playing cards.
What gets sharper the more you use it? Answer: Your brain.
Specifically, as the kangaroo hops upward, the abdominal organs lag behind, and the insertion of the diaphragm is pulled toward its origin, flattening the dome and increasing the vertical dimension of the thoracic cavity (the thoracic cavity and lungs enlarge).
Some sharks such as the nurse shark have spiracles that force water across their gills allowing for stationary rest. Sharks do not sleep like humans do, but instead have active and restful periods.
Despite names like 'whale shark', all sharks are fish and differ in many ways from mammals. For example, mammals breathe air through lungs, feed their young with milk and are warm-blooded. Sharks pass water over gills to breathe, don't have mammary glands and (with the exception of mackerel sharks) are cold-blooded.
Fish have gills that allow them to “breathe” oxygen dissolved in the water. Water enters the mouth, passes over the gills, and exits the body through a special opening. This keeps an adequate amount of water in their bodies and they don't feel thirsty.
Fish have blood and it is red in color. fish have a red pigment called hemoglobin that is responsible for the red color. Similar to humans, fish have a circulatory system with blood and a heart that acts as a pump. A fish's whole body weight is around 10% of its blood.
While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest.
Worms lay eggs, which hatch as little worms. Baby worms develop in cocoons. They are babies for 60 to 90 days and it takes them about a year to become an adult.
They might sense something, but it is not painful and does not compromise their well-being."
It is estimated that around 80% of both adults and children have parasites in their gut. People can be infected with these parasites in a number of ways. The most common route is through the faecal oral route.
The male reproductive system of the fire ant, Solenopsis invicta Buren (Hymenoptera : Formicidae), consists of the testes, vasa efferentia, vasa deferentia, seminal vesicles, accessory glands, ejaculatory duct, wedge, aedeagal bladder, and external genitalia.
The short answer is ants have something similar to blood, but scientists call it “haemolymph”. It is yellowish or greenish. In vertebrates (animals with backbones such as humans, cats, dogs, snakes, birds and frogs) blood's main job is to move important things around the body.
Animals, including ants, have specialized sensory neurons that detect and alert them to harmful stimuli, such as temperature, pressure, or chemical changes. These pain-sensing neurons are called nociceptors.
Do kangaroos sleep standing up or laying down? Kangaroos do not sleep standing up. Kangaroos will find a nice, shady spot to lay down and take a snooze. They usually sleep on their side or on their back, using their forearms to support their chest and head.