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Myth busting: Purpose-bred dogs are not better at biting or scenting than those not bred for that purpose Since their domestication millennia ago, dogs have been man's best friend, and aside from friendship, centuries of selective breeding have… Started by Dr. Krishna Kumari Challa	1	Feb 1 Reply by Dr. Krishna Kumari Challa
Planes have high-tech systems to stop midair crashes. So what goes wrong sometimes? On Wednesday night, US time, a passenger jet and a US Army helicopter collided at a low altitude near Ronald Reagan Washington National A… Started by Dr. Krishna Kumari Challa	1	Feb 1 Reply by Dr. Krishna Kumari Challa
Is cold-water immersion good for our health? Cold-water immersion is increasingly popular among athletes and wellness warriors. But how much of the hype is backed by science? In the mo… Started by Dr. Krishna Kumari Challa	1	Feb 1 Reply by Dr. Krishna Kumari Challa
How bats are helping humans Some people fear bats. After COVID19, this fear has increased several fold. Some even suggested that we kill all the bats in the world! It… Started by Dr. Krishna Kumari Challa	2	Jan 31 Reply by Dr. Krishna Kumari Challa
Scientists uncover how cancer cells hijack T-cells, making it harder for the body to fight back Researchers have discovered a surprising way cancer evades the immune system. It essentially hacks the immune cells, transferring its own f… Started by Dr. Krishna Kumari Challa	1	Jan 25 Reply by Dr. Krishna Kumari Challa
How can seeds germinate after thousands of years of dormancy? Q: If a seed is planted in the ground even after lakhs of years, the plant will sprout.. But how did that seed manage to hide life within i… Started by Dr. Krishna Kumari Challa	1	Jan 25 Reply by Dr. Krishna Kumari Challa
The science of laughing and crying Q: Does laughing really help people? Krishna: My reply is going to surprise you. You might have heard this… In modern society, fierce compe… Started by Dr. Krishna Kumari Challa	2	Jan 23 Reply by Dr. Krishna Kumari Challa
Mom's X chromosome could speed up brain aging Women are born with two X chromosomes and inherit one from each parent. But in every cell of their body, just one X chromosome is needed—s… Started by Dr. Krishna Kumari Challa	1	Jan 23 Reply by Dr. Krishna Kumari Challa
Human use of fire has produced an era of uncontrolled burning: Welcome to the Pyrocene Los Angeles is burning, but it isn't alone. In recent years, fires have blasted through cities in Colorado, the southern Appalachians and… Started by Dr. Krishna Kumari Challa	1	Jan 23 Reply by Dr. Krishna Kumari Challa
Sport Science - your best bet to beat competition when used in a correct and legal way How can you achieve these targets in sport: "Faster, Higher, Stronger"? Very often people in this part of the world wonder why some develop… Started by Dr. Krishna Kumari Challa	17	Jan 21 Reply by Dr. Krishna Kumari Challa