Hummingbirds may struggle to go any further uphill

Any animal ascending a mountain experiences a double whammy of impediments: The air gets thinner as it also becomes colder, which is particularly problematic for creatures struggling to keep warm when less oxygen is available. ...

Pollination by birds can be advantageous

Why have some plant species changed pollinators in their evolution? An international team of researchers from the Universities of Bonn and Xi'an Jiaotong-Liverpool University Suzhou (China) studied the reproductive systems ...

Hummingbirds found to exert fine control over body heat

At night, hummingbirds lower their body temperature and metabolism drastically by dropping into an energy-saving state of inactivity called torpor. Scientists from multiple universities now find there's more than one level ...

Hummingbirds can smell their way out of danger

In less time than it takes to read this sentence, hummingbirds can catch a whiff of potential trouble. That's the result of new UC Riverside research showing, contrary to popular belief, the tiny birds do have an active sense ...

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