Some animals have evolved to survive without oxygen in extreme environments. Creatures like **Hydra** can switch to anaerobic ...

The respiration can be aerobic, which uses glucose and oxygen, or anaerobic which uses only glucose. This video is about aerobic respiration.

Here are seven amazing animals that do not require oxygen to survive.

It delivers oxygen and glucose to the tissues for respiration, which is the release of energy to cells. This video is about how arteries carry blood away from the heart.

Feb. 7, 2025 — Researchers have analyzed the soft tissue from a fossilized plesiosaur for the first time. The results show that the long-necked marine reptile had both smooth and scaly skin ...

Feb. 11, 2025 — Managed honey bees have the potential to affect native bee populations when they are introduced to a new area, but a new study suggests that, under certain conditions, the native ...

Discover the incredible underwater escape strategy of water anole lizards in Costa Rica. Learn how they create air bubbles to ...

Animal behavior research is particularly relevant to the study of human behavior when it comes to the preservation of a species, or how an animal’s behavior helps it survive. The behavior of ...

February 11, 2025 • Monty's competition included a bichon frisé called Neal, a Skye terrier named Archer, a whippet and repeat runner-up known as Bourbon and a shih tzu called Comet who's been ...

Sheriff Smith says seeing Tranq on the streets is adding to the opioid drug use problem. WASHINGTON PARISH, La. — It was a ...

Animal physiology is the scientific study of the life-supporting properties, functions and processes of animals or their parts. The discipline covers key homeostatic processes, such as the ...

This is a universal product of com bustion, whether in the ungovernable confla gration or the measured respiration of the living animal. Carbonic acid is a heavy gas —it extinguishes fire and ...