Temple University researchers have assembled the largest and most accurate tree of life calibrated to time, and surprisingly, it reveals that life has been expanding at a constant rate.
Evolution
Mar 3, 2015
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Ever since the nineteenth century scientists have recognised that some regions contain more species than others, and that the tropics are richer in biodiversity than temperate regions. But why are there more species in the ...
Plants & Animals
Jan 28, 2014
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When you hear the word "mutations", you probably think of something negative like heritable diseases. But mutations also mean genetic diversity and are at the centre of evolution. Researchers have now uncovered a surprisingly ...
Biotechnology
Aug 14, 2013
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The algae, traditionally cultivated for the food sector, are accessible marine resources as they grow in coastal areas. These crops increase by 7.5% on average every year and have become an important part of marine aquaculture ...
Biotechnology
Jul 9, 2013
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In a scientific paper published in the journal Polar Biology, researchers report using DNA from tissues samples collected in 1955 to study what may be a new type of killer whale (Orcinus orca).
Plants & Animals
Jun 19, 2013
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The human body contains trillions of cells, all derived from a single cell, or zygote, made by the fusion of an egg and a sperm. That single cell contains all the genetic information needed to develop into a human, and passes ...
Cell & Microbiology
May 5, 2013
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(AP)—India's Supreme Court on Monday ordered western Gujarat state to share some of its endangered lions with a neighboring state to create a second home for them.
Ecology
Apr 15, 2013
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It is rather difficult to imagine, but approximately 635 million years ago, ice may have covered a vast portion of our planet in an event called "Snowball Earth." According to the Snowball Earth hypothesis, the massive ice ...
Earth Sciences
Feb 28, 2013
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(Phys.org)—After a year of studying up close the symbiotic relationship between a mosquito-sized bug and a fungus, a Simon Fraser University biologist has advanced the scientific understanding of biological diversity.
Plants & Animals
Feb 6, 2013
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(Phys.org)—Biodiversity is a complex phenomenon that emerges from the combination of a large number of ecological mechanisms. Yet, despite the complexity of its origins, there is one prevalent pattern that always appears ...
Economics & Business
Nov 28, 2012
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