Our expertly researched article explains that cats purr for a wide variety of reasons, some of which will surprise you!

18, 2024 — Scientists have generated human stem cell models which contain notochord -- a tissue in the developing embryo that acts like a navigation system ... Survive in Bone Marrow After ...

Jan. 7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system. Both systems include a moon that is a large ...

For good flavour and nutrition, a beef marrow bone is a great addition to this bone broth. Make up the rest with chicken carcasses from roasts or lamb bones, which are also good for a rich flavour.

Respiratory tract diseases are illnesses that affect components of the respiratory system, including the nasal passages, the bronchi and the lungs. They range from acute infections, such as ...

People who are missing parts of their intestines or have limited intestinal mobility may require total parenteral nutrition (TPN), a type of nutrition that bypasses the digestive system. The rectum is ...