Reconstruction of Halszkaraptor escuilliei. This small dinosaur was a close relative of Velociraptor, but in both body shape and inferred lifestyle it much closely recalls some waterbirds like modern swans.
Credit: Lukas Panzarin; and Andrea Cau for scientific supervision
An exceptionally...
Of the more than 1,000 verified planets found by NASA's Kepler Space Telescope, eight are less than twice Earth-size and in their stars' habitable zone.
Credit: NASA
Planet Earth is situated in what astronomers call the Goldilocks Zone -- a sweet...
Models used by the Intergovernmental Panel on Climate Change may be underestimating future warming.
Credit: © f9photos / Fotolia
The climate models that project greater amounts of warming this century are the ones that best align with observations of the current...
The naked HIV capsid, left, would be quickly detected and eliminated from the cell, but a host protein, cyclophilin A, in red in the image on the right, binds to the capsid and enables it to transit through the...
This image depicts a trap nest containing a mason wasp (Antherhynchium flavomarginatum) pupa, left; and a mason wasp larva, right, that has been parasitized by the larva of the wasp parasitoid Lycogaster violaceipennis.
Credit: Felix Fornoff, University of Freiburg
Like a...
Tatyana Polenova and Juan Perilla, professors in the Department of Chemistry and Biochemistry at the University of Delaware, with a computer-generated model of HIV, the virus that causes AIDS.
Credit: University of Delaware/ Evan Krape and Jeffrey Chase
Viewed with a...
Female mountain gorilla. The ancestors of simian primates -- such as gorillas, gibbons and tamarins -- were among the first to give up nocturnal activity altogether.
Credit: © F.C.G. / Fotolia
Mammals only started being active in the daytime after non-avian...
Titan's winter polar vortex imaged by the Cassini Spacecraft's ISS camera. The vortex is now in deep winter and can only be seen because the polar clouds within the vortex extend high above Titan's surface into the sunlight. The...
Adams Flat, one of the two sites in Antarctica where microbes were collected.
Credit: Phil O'Brien
UNSW-Sydney led scientists have discovered that microbes in Antarctica have a previously unknown ability to scavenge hydrogen, carbon monoxide and carbon dioxide from the air...
Antarctica.
Credit: Dave Pape, Public Domain
It's official: East Antarctica is pushing West Antarctica around.
Now that West Antarctica is losing weight--that is, billions of tons of ice per year--its softer mantle rock is being nudged westward by the harder mantle...
Our brain is especially good at perceiving lines and contours even if they do not actually exist, such as the blue triangle in the foreground of this optical illusion. The pattern of neuronal connections in the brain supports this...
