For the First Time, Human Brain Cells Are Growing Inside Rats. What Happens Next?

For the first time, clumps of human cells called organoids were fully integrated with the brains of rats—and influenced their behavior.

Austrian researchers document first case of a cow using a tool

Researchers in Austria detailed the unusual case of the first cow to be documented using tools -- specifically, a brush she ...
Science Focus

A cow has been filmed using tools for the first time ever, stunning scientists

A very clever cow has learned to use sticks to scratch herself, the first time sophisticated tool use has been seen in ...
NPR

A promising genetic treatment tailor-made for a baby born with a rare disorder

For the first time, doctors have treated a baby born with a rare, life-threatening genetic disorder with a gene-editing therapy scientists tailored to specifically repair his unique mutation. The baby ...
Forbes

This Next Generation IVF Startup Facilitated The Birth Of A Baby For The First Time

Many founders joke that their companies are like their “baby.” But for Dina Radenkovic, that took on a whole new meaning on December 7 when the first baby conceived using her company’s in-vitro ...

2 young first-time drug users died after using Ice at home in 2025; police rule out foul play

Two young individuals died from a methamphetamine overdose at home in 2025; police ruled out foul play in this tragic ...
CNN

Drone footage reveals orcas using tools in a stunning first

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...
Forbes

First Time Flying First Class? Here’s Everything You Need To Look Like A Regular

First-class fliers have a code. It’s subtle and usually comes with a glass of champagne. If you want fit in before you fall flat in a sea of stares, learn the unspoken rules—lest you mistake the amuse ...