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Hace 5 horas · The bird flu virus strain that infected a Texas dairy farm worker in March was lethal to ferrets in experiments designed to mimic the disease in humans, the U.S. Centers for Disease Control and ...
Hace 4 días · The Last Human Job explores the human connections that underlie our work, arguing that what people do for each other in these settings is valuable and worth preserving. Drawing on in-depth interviews and observations with people in a broad range of professions—from physicians, teachers, and coaches to chaplains, therapists, caregivers, and ...
Hace 3 días · The adult human body is estimated to contain about 30 trillion (3×10 13) human cells, with the number varying between 20 to 40 trillion depending on factors such as sex, age, and weight.Additionally, there are approximately an equal number of bacterial cells. The exact count has not yet been empirically measured in its entirety and is based on smaller samples of empirical observation.
Hace 5 días · brain, the mass of nerve tissue in the anterior end of an organism. The brain integrates sensory information and directs motor responses; in higher vertebrates it is also the centre of learning.The human brain weighs approximately 1.4 kg (3 pounds) and is made up of billions of cells called neurons.Junctions between neurons, known as synapses, enable electrical and chemical messages to be ...
Hace 3 días · Chimpanzee laughter is not readily recognisable to humans as such, because it is generated by alternating inhalations and exhalations that sound more like breathing and panting. Instances in which nonhuman primates have expressed joy have been reported. Humans and chimpanzees share similar ticklish areas of the body, such as the armpits and belly.
Hace 2 días · From left are, NASA astronaut Jonny Kim, Canadian Space Agency (CSA) astronaut Joshua Kutryk, NASA astronaut Jessica Watkins, CSA astronaut Jennifer Sidey-Gibbon, NASA astronauts Kayla Barron, Jasmin Moghbeli, Loral O’Hara, Zena Cardman, Raja Chari, Matthew Dominick, Bob Hines and Warren Hoburg. This is the first class of astronauts to ...
Hace 4 días · Understanding Human Races: Debunking Myths and Embracing Diversity As a travel photographer, I have had the privilege of experiencing the beauty and diversity of cultures around the world. One fascinating aspect of humanity is the concept of race. For years, there has been a debate about the number of human races that exist. In this …
