How did early cells maintain their identity while still allowing some exchange? (Image credit: University of Chicago Pritzker School of Molecular Engineering/Peter Allen, Second Bay Studios, CC BY-ND) Billions of years of evolution have resulted in modern cells being incredibly…
A great white shark (Carcharodon carcharias), the largest predatory fish on the planet, swims near Guadalupe Island. (Photo credit: Dave Fleetham/Design Pics Editorial/Universal Images Group via Getty Images) Sharks are among the toughest creatures on Earth. These ancient creatures have…
Normally, the brain has “braking mechanisms” that filter most aspects of its functioning from our conscious experience. (Image credit: Henry King via Getty Images) What happens when we actually die—when the heart stops beating and all electrical activity in our…
Homo sapiens first appeared around 300,000 years ago, descended from Homo heidelbergensis, the common ancestor we share with Neanderthals. (Image credit: JuliusKielaitis/Shutterstock) First proposed by Charles Darwin and Alfred Russel Wallace in the 1850
An 18.4-foot great white shark (not pictured) was caught in Queensland in August. (Photo: Nautilus Creative/Getty Images) A recently caught great white shark on a drumline in Queensland, Australia, will be used to help scientists better understand the species. The…
Video footage shows that epileptic seizures may immediately precede some sudden unexplained deaths in children. (Image credit: Ann in the UK/Shutterstock) Some unexplained deaths of young children may be linked to epileptic seizures, according to a new study that analyzed…