Despite protection urban hawks still face an array of threats
Life can be hard for a raptor. If you're a teenager from the city, it's even harder. That's according to a new study published in the Journal of Raptor.
Life can be hard for a raptor. If you're a teenager from the city, it's even harder. That's according to a new study published in the Journal of Raptor.
Plants & Animals
Mar 18, 2024
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Just as when we humans reach for objects, the hummingbird hawk moth uses its visual sense to place its long proboscis precisely on a flower to search for nectar, according to a study by Konstanz biologists.
Plants & Animals
Jan 29, 2024
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178
While physics tells us that information can neither be created nor destroyed (if information could be created or destroyed, then the entire raison d'etre of physics, that is to predict future events or identify the causes ...
Astronomy
Nov 16, 2023
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New theoretical research by Michael Wondrak, Walter van Suijlekom and Heino Falcke of Radboud University has shown that Stephen Hawking was right about black holes, although not completely. Due to Hawking radiation, black ...
Astronomy
Jun 2, 2023
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Pale Male, a red-tailed hawk who brought a touch of the wild to swanky Manhattan as he nested above Fifth Avenue for three decades, has died.
Plants & Animals
May 17, 2023
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141
The term "Luddite" emerged in early 1800s England. At the time there was a thriving textile industry that depended on manual knitting frames and a skilled workforce to create cloth and garments out of cotton and wool. But ...
Social Sciences
May 12, 2023
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Perched next to a river near a glacier's edge in Greenland, Penn biogeochemist Jon Hawkings and Jack Murphy, senior research coordinator in Hawkings' lab, scooped up samples of frigid meltwater, careful to seal the bottles ...
Environment
Feb 14, 2023
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Research led by the University of Amsterdam has demonstrated that elusive radiation coming from black holes can be studied by mimicking it in the lab.
General Physics
Nov 11, 2022
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The sight of hundreds of thousands of bats streaming from their roost at dusk is one of nature's great spectacles. Swarms can be so dense they resemble rising smoke at a distance. But the aerial antics of the birds of prey ...
Plants & Animals
Oct 10, 2022
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Science fiction is the realm where people traditionally wrestle with the idea of contact with an ETI (Extraterrestrial Intelligence.) But now, those discussions are migrating from science fiction into more serious realms. ...
Astrobiology
Oct 6, 2022
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The term hawk can be used in several ways:
The common names of birds in various parts of the world often use hawk in the second sense. For example, the Osprey or "fish hawk"; or, in North America, the various Buteo species (e.g., the Red-tailed Hawk, B. jamaicensis).
In February 2005, the Canadian ornithologist Louis Lefebvre announced a method of measuring avian "IQ" in terms of their innovation in feeding habits. Hawks were named among the most intelligent birds based on his scale. Hawks are widely reputed to have visual acuity several times that of a normal human being. This is due to the many photoreceptors in the retina (up to 1,000,000 per square mm for Buteo, against 200,000 for humans), an exceptional number of nerves connecting these receptors to the brain, and an indented fovea, which magnifies the central portion of the visual field.
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