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Science: Biology

Personal favourite. The study of life and how things work

Researchers at Tufts University have found that not only can the planarian worm, pictured, regrow its own head, but the new head contains old memories. The worms were trained to find food in a petri dish before being decapitated. When their new head had regrown, the worms were able to remember these skills

Cross-section of the esophagus showing, from the central region outward, the lumen, mucosa, submucosa, a muscularis externa, and a thin adventia or serosa. SEM X60

902412.jpg | Visuals Unlimited


Plants can be cool too

“Spirit Bear” by Iain Williams – Coastal British Columbia, Canada. The Kermode Bear is a sub-species of the American Black Bear living deep within the temperate rainforests of British Columbia. Often referred to as the Spirit Bear due to its creamy-white coloring (not caused by albinism, but a recessive allele), it’s estimated that there are between 400-1000 individuals in the wild. The bear owes its survival to the indigenous people who never hunted it or mentioned it to early fur trappers.

Optic Nerve

Genetically modified cat who glows green under blue light - will be used to study human and feline AIDS virus.

Image Gallery: Cats that Glow in the Dark

Anatomical X-ray Gifs

Anatomical X-ray Gifs

Equatorial Saki - Pithecia aequatorialis - This New World monkey of the family Pitheciidae is found in areas of Ecuador and reportedly, Peru. It is a canopy dweller and very rarely will it descend to the ground

Saki monkey - Wikipedia, the free encyclopedia

Pied Bat (Badger Bat) - Niumbaha superba - This rare species of vesper (evening or common) bat belongs to the family Vespertilionidae and is the only species in the genus Niumbaha (Niumbaha is of the Zande language of the Azande. It means 'rare') - Image : credit DeeAnn Reeder/Bucknell University

Glycolysis, respiration, and the Citric Acid Cycle (aka Krebs Cycle)

Pearls are the most valuable of all organic gemstones, and have been prized for 6000 years. Pearls chemical makeup varies by region and environmental factors, but the basic formula is CaCO3. Pearls form through irritants entering specific species of mollusks (oysters, clams, muscles, etc), while the irritant can be a grain of sand or a parasite, the process is the same for pearls. The irritant is coated in CaCO3(mother of pearl) to make it less irritating to the mollusk. (...)