Hummingbird evolution soared after they invaded South America 22 million years ago
A newly constructed family tree of the hummingbirds, published today in the journal Current Biology, tells a story of a unique group of birds that originated in Europe, passed through Asia and North Americ ...
Hummingbirds' 22-million-year-old history of remarkable change is far from complete
The first comprehensive map of hummingbirds' 22-million-year-old family tree—reconstructed based on careful analysis of 284 of the world's 338 known species—tells a story of rapid and ongoing diversification. The decade-long ...
Hummingbird metabolism unique in burning glucose and fructose equally
Hummingbird metabolism is a marvel of evolutionary engineering. These tiny birds can power all of their energetic hovering flight by burning the sugar contained in the floral nectar of their diet.
How hummingbirds evolved to fly at high altitude
(Phys.org) —High up in the Andes, numerous species of hummingbirds are thriving despite low levels of oxygen.
At 15, Google revisits past, eyes future
Google celebrated its 15th birthday Thursday with a trip down memory lane, and an update to the search engine formula which helped spawn the tech giant.
Students capture the flight of birds on very high-speed video
Stanford mechanical engineering professor David Lentink and his students capture slow-motion video from the fastest wings in the bird world, with an eye toward building flying robots that take design cues ...
New book finds Gaia Hypothesis implausible
A new book presents the first detailed and comprehensive analysis of the famous Gaia Hypothesis, and finds it to be inconsistent with modern evidence.
Evolution shapes new rules for ant behavior
In ancient Greece, the city-states that waited until their own harvest was in before attacking and destroying a rival community's crops often experienced better long-term success.
Bird fossil sheds light on how swift and hummingbird flight came to be
A tiny bird fossil discovered in Wyoming offers clues to the precursors of swift and hummingbird wings. The fossil is unusual in having exceptionally well-preserved feathers, which allowed the researchers ...
Just what makes that little old ant… change a flower's nectar content?
Ants play a variety of important roles in many ecosystems. As frequent visitors to flowers, they can benefit plants in their role as pollinators when they forage on sugar-rich nectar. However, a new study ...
Study shows hovering hummingbirds generate two trails of vortices under their wings, challenging one-vortex consensus
As of today, the Wikipedia entry for the hummingbird explains that the bird's flight generates in its wake a single trail of vortices that helps the bird hover. But after conducting experiments with hummi ...
Study: Hummingbirds migrating earlier in spring
(AP)—Ruby-throated hummingbirds are migrating to North America weeks earlier than in decades past, and research indicates that higher temperatures in their winter habitat may be the reason.
High-speed video and artificial flowers shed light on mysteries of hummingbird-pollinated flowers
How flowers have evolved particular colours, shapes and scents to attract pollinators has long fascinated ecologists. Now, using artificial flowers and high-speed video, researchers have gained intriguing ...
Hummingbirds make flying backward look easy
Animals that move backwards usually require a lot of energy, so Nir Sapir from the University of California Berkeley, USA, was surprised when he realized that hummingbirds execute this maneuver routinely. ...