Animals Archive
15 September 2015, 03:08 PM ET
Like its modern-day descendants, an ancient big fish known as a coelacanth had gills, but it also sported a well-developed lung, a new study finds.
15 September 2015, 06:53 AM ET
Caterpillars that munch on corn leaves have developed a clever way to get the most nutrients from their meals: They use their poop to trick the plants into lowering their defenses.
11 September 2015, 02:56 PM ET
Bad news for apiphobes: Killer bees are on the move in the United States, but that may be helpful to the besieged European bee.
11 September 2015, 02:06 PM ET
Snakebites in Costa Rica spike during El Niño and La Niña as venomous snakes respond to changes in the weather and climate.
11 September 2015, 10:24 AM ET
Scientists have pieced together how ankylosaurs' weaponized tail clubs evolved, finding that the hammer's "handle" came first.
10 September 2015, 04:38 PM ET
Do you love surprises? What about surprises involving venomous spiders?
09 September 2015, 06:49 PM ET
A dusty, windy desert in extreme northwestern Peru was once a grassland, replete with hundreds of songbirds. But this grassland was also a trap. Tar seeps bubbling up from the oil-rich ground snared the likes of saber-toothed cats and songbirds.
09 September 2015, 06:56 AM ET
A new autopsy reveals that overeating choked and killed an unfortunate raptor from ancient Egypt. Scientists suspect that Egyptians force-fed the bird so they could offer it to the sun god Ra as a votive mummy.
08 September 2015, 10:24 AM ET
Pregnant male seahorses tend to develop embryos similarly to the way mammals do, new research shows.
08 September 2015, 05:49 AM ET
During the little panda's short life, it rode atop a lacrosse stick, snuggled with its mother and fed from a bottle, the last of which may have led to its demise.
05 September 2015, 12:52 AM ET
The Russian Far East hosts some of the world's most exotic creatures, many represented by just a few hundred remaining animals that exist nowhere else.
04 September 2015, 05:02 PM ET
A one-of-a-kind spider from Down Under looks more like a Transylvania transplant than an Aussie, thanks to its red fangs.
04 September 2015, 04:27 PM ET
Cats do not form the childlike, dependent bonds on caregivers that dogs do, suggesting that the felines really are more independent than their canine counterparts.
04 September 2015, 04:12 PM ET
Think sharks only live in the ocean? Think again.
04 September 2015, 03:48 PM ET
A female funnel-web spider with bizarre blood-red coloring on her fangs rears up in a ready-to-strike position.
04 September 2015, 02:52 PM ET
Mark Wong was surprised when he turned over a rock in Tallaganda State Forest, in New South Wales, not because there was a scary-looking spider looking back at him. Rather, it was because the funnel-web spider had red fangs, never seen in this species.
04 September 2015, 02:24 PM ET
Hawk nests create a "cone of safety" from predatory jays, protecting vulnerable hummingbird nests.
04 September 2015, 02:21 PM ET
Hummingbirds have a clever strategy to keep their nests safe: They recruit unknowing hawks for home security. Check out these spectacular photos of hummingbirds, hawks and jays.
04 September 2015, 08:11 AM ET
It's a frog-eat-frog world out there.
03 September 2015, 08:38 AM ET
Science Twitter has gone full squee. Biologists are tweeting pictures of their adorable research subjects in a #CuteOff, and the results are downright nom-able. So what are the essential ingredients of cute?
02 September 2015, 03:01 PM ET
Getting a tooth pulled is never fun, but it's especially irksome if you're an aardvark.
02 September 2015, 02:45 PM ET
A Twitter hashtag, #JunkOff, illustrates the steamier side of biology — and its importance to understanding evolution.
02 September 2015, 02:30 PM ET
A tiny multicellular animal has nothing recognizable as muscle or nerve cells. In fact it has no organs at all. And yet it can hunt down, dissolve and consume algae with surprising sophistication, new research shows.
02 September 2015, 12:10 PM ET
Here the animal called Trichoplax triggers algal cells to burst open and then sort of sucks up the spilled contents.
02 September 2015, 09:03 AM ET
A new fossil discovery sheds light on when some dolphins went from oceans to rivers.
02 September 2015, 07:51 AM ET
Researchers are just beginning to untangle the mystery of why more than half of Kazakhstan's critically endangered saigas died off in a few weeks in late May.
02 September 2015, 07:48 AM ET
Researchers are just beginning to untangle the mystery of why more than half of Kazakhstan's critically endangered saigas died off in a few weeks in late May.
01 September 2015, 10:38 AM ET
About 460 million years ago, a sea scorpion about the size of an adult human swam around in the prehistoric waters that covered modern-day Iowa, likely dining on bivalves and squishy eel-like creatures, a new study finds.
01 September 2015, 10:35 AM ET
Fossils of 460-million-year-old eurypterids (sea scorpions) were uncovered underneath the flowing waters of the Upper Iowa River.
01 September 2015, 08:18 AM ET
An 80-million-year-old lizard discovered in southern Brazil has provided a surprising clue about how these reptiles evolved, and where they once lived, according to a new study.
31 August 2015, 03:00 PM ET
125-million-year-old microbes were trapped in ancient seafloor rocks by minerals, leaving a record from the earliest days of the Atlantic Ocean.
31 August 2015, 08:45 AM ET
One of the toothy stars of "Shark Week" has just phoned home after five months at sea, revealing that this longfin mako shark was a prolific and deep-diving swimmer.