When tyrannosaurs dominated, medium-sized predators disappeared
New UMD study suggests that everywhere tyrannosaurs rose to dominance, their juveniles took over the ecological role of medium-sized carnivores
New UMD study suggests that everywhere tyrannosaurs rose to dominance, their juveniles took over the ecological role of medium-sized carnivores
Paleontology & Fossils
Jun 17, 2021
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400
Free from human disturbance for a century, an inland island in Central America has nevertheless lost more than 25% of its native bird species since its creation as part of the Panama Canal's construction, and scientists say ...
Plants & Animals
May 13, 2021
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60
A new species of marsupial frog has been discovered in Peru's Amazon jungle, the state service for natural protected areas said on Monday.
Plants & Animals
Apr 12, 2021
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5778
Geologists have long thought tectonic plates move because they are pulled by the weight of their sinking portions and that an underlying, hot, softer layer called asthenosphere serves as a passive lubricant. But a team of ...
Earth Sciences
Mar 11, 2021
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4958
Over a period of 39 months, invasive keyhole wasps (Pachodynerus nasidens) at the Brisbane Airport were responsible for 93 instances of fully blocked replica pitot probes—vital instruments that measure airspeed—according ...
Ecology
Nov 26, 2020
2
341
The hurricanes in the Caribbean became more frequent and their force varied noticeably around the same time that classical Mayan culture in Central America suffered its final demise: We can gain these and other insights by ...
Earth Sciences
Jul 22, 2020
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102
Earth's temperature spiked to tie a record high for May, U.S. meteorologists reported Friday.
Environment
Jun 12, 2020
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1192
During a global extinction crisis and rapidly changing world, many nations are now looking to harden their borders to restrict the movement of people.
Plants & Animals
Apr 29, 2020
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417
A pair of researchers with George Washington University has found evidence of an ancient ball game played much earlier than previously thought in the Mesoamerican highlands. In their paper published in the journal Science ...
A tropical rainfall belt providing critical summer rains to billions of people is at risk of shrinking due to future climate warming, according to new research.
Earth Sciences
Feb 18, 2020
8
374