Domestication Might Have Sculpted Eyebrow Expressions in Dogs
Domestication Might Have Sculpted Eyebrow Expressions in Dogs
Dogs have stronger facial muscles compared to wolves, giving them the sad or “puppy dog eyes” look.
Domestication Might Have Sculpted Eyebrow Expressions in Dogs
Domestication Might Have Sculpted Eyebrow Expressions in Dogs

Dogs have stronger facial muscles compared to wolves, giving them the sad or “puppy dog eyes” look.

Dogs have stronger facial muscles compared to wolves, giving them the sad or “puppy dog eyes” look.

National Cancer Institute, ecology, evolution
Image of the Day: Hybrid Cetacean
Image of the Day: Hybrid Cetacean
Chia-Yi Hou | Jun 21, 2019
The DNA of a whale shows its father was a beluga and its mother was a narwhal.
Amidst UK Pollinator Declines, Migrant Hoverflies Are Doing Well
Amidst UK Pollinator Declines, Migrant Hoverflies Are Doing Well
Katarina Zimmer | Jun 13, 2019
A decade-long study tallies the numbers of pest-eating, flower-pollinating hoverflies that travel to the UK every year, and illustrates their important ecological roles in southern Britain.
Metabolism Hits a Ceiling in Athletic Endurance Feats
Metabolism Hits a Ceiling in Athletic Endurance Feats
Shawna Williams | Jun 5, 2019
In long-distance, physically taxing events, the amount of energy athletes can expend appears to peak at about 2.5 times their metabolic resting rate—a maximum likely dictated by how many calories they can digest.
National Cancer Institute Will Stop Funding Nanotechnology Centers
National Cancer Institute Will Stop Funding Nanotechnology Centers
Chia-Yi Hou | May 20, 2019
The Centers of Cancer Nanotechnology Excellence were established in 2005 through several phases of funding, which are reported to end next year.
Neanderthals and Modern Humans Diverged Earlier than Thought: Study
Neanderthals and Modern Humans Diverged Earlier than Thought: Study
Chia-Yi Hou | May 15, 2019
Fossil records show that the most recent shared ancestor with modern humans may have lived at least 800,000 years ago.
<em>Australopithecus sediba</em> Not Likely Humans&rsquo; Ancestor: Study
Australopithecus sediba Not Likely Humans’ Ancestor: Study
Kerry Grens | May 9, 2019
The fossil record for the ancient hominin A. sediba is younger than that of Homo, a “highly unlikely” scenario for a direct lineage.
This Deep-Sea Fish Has the Most Types of Opsins Among Vertebrates
This Deep-Sea Fish Has the Most Types of Opsins Among Vertebrates
Katarina Zimmer | May 9, 2019
The silver spinyfin has an extraordinary diversity of rod photopigments, which researchers propose may allow it to see color in the deep, dark sea.
Image of the Day: Bat-like Wings
Image of the Day: Bat-like Wings
Chia-Yi Hou | May 9, 2019
Paleontologists find a fossil of a dinosaur, Ambopteryx longibrachium, with membranous wings, in China.
Image of the Day: New Tyrannosauroid
Image of the Day: New Tyrannosauroid
Chia-Yi Hou | May 7, 2019
Fossils of two dinosaur skeletons found in New Mexico are from a species new to science that lived 92 million years ago.