On Monday, Colossal Biosciences, a genetic engineering startup, showcased an unlikely cub to the world—the dire wolf. The species, once found commonly across the Americas, had been extinct for over 10,000 years. Is human immortality also around the corner? How did the extinct dire wolf return? Scientists at Colossal used genetic reconstruction to recreate the…
Scientists have come up with a groundbreaking discovery in the latest study which paves the way for two men to have an offspring without a biological mother. The genetic engineering experiment involved a mouse, produced without a mother, that survived until puberty. Previously, scientists used genetic material from two mothers to produce a mouse without…
An adult human body consists of some 37 trillion cells. Not so long ago, these were thought to come in 220 different types. That number, the product of painstaking decades spent peering through microscopes at slides bearing tissue sections coloured by chemical stains, gave a sense of the division of cellular labour needed to keep…
Many people are busily experimenting with chatbots in the hope that generative artificial intelligence (AI) can improve their daily lives. Scientists, brainy as they are, are several steps ahead. As we report, 10% or more of abstracts for papers in scientific journals now appear to be written at least in part by large language models….
Sharks off the coast of Brazil have been found to contain cocaine and which the scientists suspect may be altering their behaviour. In a study conducted on 13 Brazilian sharpnose sharks near Rio de Janeiro, marine biologists found that they all had high levels of cocaine in their muscles and livers. In a paper for…
