Marking trees are important hotspots of communication for cheetahs: Here they exchange information with and about other cheetahs via scent marks, urine and scats.
Washington [US], September 20 (ANI): Chemists find a rare genetic pathway that helps mammalian cells become drug factories or sensors by synthesizing noncanonical amino acids. The clues came from an uncommon bird.
Washington [US], September 11 (ANI): Electrical signals cause the heart to beat and can cause severe cardiac events like tachycardia and fibrillation as they spiral outward in spiral waves. The first high-resolution images of steady spiral waves in human ventricles are helping researchers get a fresh understanding of these complex circumstances.
Washington [US], September 8 (ANI): Electrical signals tell the heart to contract, but when the signals form spiral waves, they can lead to dangerous cardiac events like tachycardia and fibrillation. Researchers are bringing a new understanding to these complicated conditions with the first high-resolution visualizations of stable spiral waves in human ventricles.
Washington [US], August 23 (ANI): Scientists have identified a group of latent stem cells that respond to injury in the central nervous system of mice. If a similar type of cell exists in humans, they could offer a new therapeutic approach to treat brain and spinal cord injuries.
Canterbury [UK], August 22 (ANI): The University of Kent-led study found evidence of a biorhythm in human primary teeth that are linked to weight increase during adolescence.
Washington [U.S], July 21 (ANI): Warm-bloodedness is a key mammal trait, but it's been a mystery when our ancestors evolved it. A new study points to an unlikely source for telling a fossil animal's body temperature: the size of tiny structures in their inner ears. The fluid in our ears becomes runnier at higher temperatures, so animals with warm bodies don't need as big of canals for it to flow through. Turns out, mammal ancestors became warm-blooded nearly 20 million years later than previously thought.
Tsukuba [Japan], March 12 (ANI): A team, led by the University of Tsukuba, found that D-serine serves as a chemical signal that allows tissue migration in marine sea squirts when they lose their tails on transforming from tadpoles into their mature form.
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