(PhysOrg.com) -- The bombardment of Earth nearly 4 billion years ago by asteroids as large as Kansas would not have had the firepower to extinguish potential early life on the planet and may even have given it a boost, says ...
Earth Sciences
May 20, 2009
2
1
Reproduction permanently alters females' bones in ways not previously known, a team of anthropologists has found. Its discovery, based on an analysis of primates, sheds new light on how giving birth can permanently change ...
Plants & Animals
Nov 1, 2022
0
410
Like a master painter who uses the same brush techniques to continually create original works of art, evolution has produced unique species to fill new or vacated ecological functions by tinkering with just a few basic body ...
Evolution
Mar 4, 2015
3
66
Early life forms on Earth may have been able to generate metabolic energy from sunlight using a purple-pigmented molecule called retinal that possibly predates the evolution of chlorophyll and photosynthesis. If retinal has ...
Earth Sciences
Oct 16, 2018
0
300
250 million years ago, it was covered in forests and rivers, and the temperature rarely dipped below freezing. It was also home to diverse wildlife, including early relatives of the dinosaurs. Scientists have just discovered ...
Archaeology
Jan 31, 2019
0
1356
A team of scientists, led by biogeochemists at the University of California, Riverside, has found new evidence linking "Snowball Earth" glacial events to the rise of early animals.
Earth Sciences
Oct 27, 2010
39
0
A new study suggests that rapid cooling within the Earth's mantle through plate tectonics played a major role in the development of the first life forms, which in turn led to the oxygenation of the Earth's atmosphere. The ...
Earth Sciences
Jun 7, 2018
1
138
Linden Lab chief executive Mark Kingdon shakes his head when he sees news stories heralding the demise of former Internet darling Second Life.
Internet
Mar 14, 2009
6
0
A new study shows how marine life around Antarctica returned after the extinction event that wiped out the dinosaurs.
Archaeology
Jun 19, 2019
0
198
Rice University petrologists who recreated hot, high-pressure conditions from 60 miles below Earth's surface have found a new clue about a crucial event in the planet's deep past.
Earth Sciences
Apr 25, 2017
8
228
