#nautilus

#nautilus

A split-lobster, also called a chimera, is one color on one half of its body and a completely different color on the other half, according to the Seacoast Science Center.

"While whales and dolphins may temporarily move out of areas where there is significant naval sonar activity, the intensity of modern maritime conflict poses lethal risks."

Bebe, the white-winged parakeet, measures around six inches and has become an internet sensation after a video showed him exploring underwater in a custom-built submarine.

Pohlsepia mazonensis was hailed as the oldest known octopus in the fossil record, dating back to the late Carboniferous period, roughly 311 to 306 million years ago.

During major floods, thousands of tiny fish convene at Luvilombo Falls in the upper Congo River Basin to undertake a peculiar vertical migration, described for the first time today in Scientific Reports.

Few transformations in the history of life have been as extreme as the embrace of the ocean by seagrass. Like whales and dolphins, modern seagrasses descend from land-dwelling ancestors.

The bodies of the crabs displayed male reproductive structures, while other parts showcased female features, including gonopores, said K.S. Anoop Das.

In a recent study published in the zoology journal Crustaceana, scientists working in Silent Valley National Park reported a new variety of the crab that exhibits both male and female traits. Our new crab friends, of the species Vela carli, are freshwater dwellers that hang out in the streams of the Western Ghats in India.

The lava heron also has a much thicker bill than other closely related herons - an adaptation linked to feeding among sharp volcanic rocks and hard-shelled prey. "What we learned was something that hadn't been reported before," Mendales said. The discovery underscores how much remains unknown, even in iconic places like the Galápagos, said John Dumbacher, the Academy's curator of birds and mammals and Mendales' thesis adviser.

She looks really good for what I can see through the window,

Wooden objects carrying the marks of carving and use could be the oldest wooden tools ever found. Researchers dated the artefacts, found in what is now Greece, to 430,000 years ago - and suggest they might have been made by early Neanderthals or their ancestors, Homo heidelbergensis. A separate study describes 480,000-old flint-knapping tools made from antler and elephant bone, from what is now the United Kingdom.

Some deep-sea fish may be able to see light in a different way from most other vertebrates, according to a new study. The fish, found in the Red Sea, have what the scientists behind the new study describe as hybrid photoreceptorslight-sensing cells in the retina that combine elements of two distinct kinds of photoreceptors, cones and rods. In human retinas, cone cells enable us to see in bright environments, detecting color and fine detail,

We've documented sightings of glass squids to better understand the remarkable transformations they undergo from hatchlings to adults. This new observation, captured in ultra high-resolution 4K, allowed us to zoom in on a juvenile likely no bigger than a baby carrot and reveal more details than we have been able to see before.

Which animals came first? For more than a century, most evidence suggested that sponges, immobile filter-feeders that lack muscles, neurons and other specialized tissues, were the first animal lineages to emerge. Then, in 2008, a genomic study pointed to a head-scratching rival: dazzling, translucent predators called comb jellies, or ctenophores, with nerves, muscles and other sophisticated features. That single study ignited a debate that has raged for nearly 20 years, sparking fierce arguments about how complexity evolved in animals.

At first glance, it looked like Wooller and his colleagues might have found evidence that mammoths lived in central Alaska just 2,000 years ago. But ancient DNA revealed that two "mammoth" bones actually belonged to a North Pacific right whale and a minke whale-which raised a whole new set of questions. The team's hunt for Alaska's last mammoth had turned into an epic case of mistaken identity, starring two whale species and a mid-century fossil hunter.