There are 40% more tigers in the world than previously estimated
The number of tigers in the wild has gone up dramatically since 2015 — largely because of improvements in monitoring them, but the species remains endangered.
Science
'Prehistoric Planet' shows complex dinosaur behavior. But how do we actually know?
How can scientists peek into the minds of creatures dead for millions of years? A TV show presented by Sir David Attenborough attempts to do it.
A diner discovered 100 million-year-old dinosaur footprints in a restaurant
If you need an excuse to go out to dinner, this paleontological discovery might be it.
The first U.S. polio case was discovered in nearly a decade. Should you worry?
The CDC confirmed that a patient in New York has contracted polio, the first U.S. case since 2013. But most people shouldn't be concerned about contracting the virus because of high vaccination rates.
A Skittles lawsuit raises questions over titanium dioxide — a legal food additive
A suit has been filed against the maker of Skittles over titanium dioxide, a color additive that has been on the market for decades but which has been banned in food by European authorities.
COMIC: How living on Mars time taught me to slow down
NASA engineer Nagin Cox lives on Earth but works on Mars time, where days are longer and time works differently. Her work with the rovers has entirely changed the way she thinks about time on Earth.
Beloved monarch butterflies are now listed as endangered
The International Union for the Conservation of Nature added the migrating monarch butterfly for to its "red list" of threatened species and categorized it as "endangered" — two steps from extinct.
The new science coming from the James Webb telescope has astronomers giddy
In the week since the first images from the James Webb Space Telescope were unveiled, astronomers have been poring through all the observations it's made so far--and they're happily overwhelmed.
A discarded coffee cup may have just helped crack this decades-old murder case
David Sinopoli was charged Sunday in the 1975 killing of Lindy Sue Biechler. Investigators chased down leads for decades, but it wasn't until advanced DNA analysis was done that he became a suspect.
The James Webb Space Telescope images have been a game changer for astronomers
In the week since the first James Webb Space Telescope images were unveiled, astronomers have been poring over all its observations so far. What they've seen has them giddy.