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PCB contamination in Icelandic orcas: a matter of diet May 6, 2021
A new study suggests that some Icelandic killer whales have very high concentrations of PCBs (polychlorinated biphenyls) in their blubber. But it seems that other orcas from the same population have levels of PCBs that are much lower. It mainly depends on what they eat.
Most human origins stories are not compatible with known fossils May 6, 2021
In the 150 years since Charles Darwin speculated that humans originated in Africa, the number of species in the human family tree has exploded, but so has the level of dispute concerning early human evolution. A new review looks at the major discoveries in hominin origins since Darwin's works and argues that fossil apes can […]
The cerebellum may have played an important role in the evolution of the human brain May 6, 2021
The cerebellum -- a part of the brain once recognized mainly for its role in coordinating movement -- underwent evolutionary changes that may have contributed to human culture, language and tool use, according to a new study.
Sharks use Earth's magnetic fields to guide them like a map May 6, 2021
Sea turtles are known for relying on magnetic signatures to find their way across thousands of miles to the very beaches where they hatched. Now, researchers have some of the first solid evidence that sharks also rely on magnetic fields for their long-distance forays across the sea.
Artificial color-changing material that mimics chameleon skin can detect seafood freshness May 6, 2021
Scientists have designed an artificial color-changing material that mimics chameleon skin, with luminogens (molecules that make crystals glow) organized into different core and shell hydrogel layers instead of one uniform matrix. The findings demonstrate that a two-luminogen hydrogel chemosensor developed with this design can detect seafood freshness by changing color in response to amine vapors […]
Blocking viruses' exit strategy May 6, 2021
Tests of a new antiviral that aims to prevent the deadly Marburg virus from spreading in the body show promise, according to a new study.
New study tracked large sharks during hurricanes May 6, 2021
Biologists tracked large sharks in Miami and The Bahamas to understand how these migratory animals respond to major storms, like hurricanes.

Posts tagged as “Sudan”

Ethiopia: President Sahle-Work Zewde Defends Nile Dam Filing

Ethiopia: President Sahle-Work Zewde Defends Nile Dam Filing

By Cowry News on May 6, 2021

The president of Ethiopia Sahle-Work Zewde defended the disputed Nile dam filing during a visit to Niger’s new leader Mohammed Bazoum. According to Africanews, the meeting focused on the contentious…

Posts tagged as “Sudan”

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