Sex, lice and videotape
A few years ago, Scott Villa of Emory University had a problem. Then a graduate student at the University of Utah, he was stumped with an issue never addressed in school: How does one film lice having sex?
A few years ago, Scott Villa of Emory University had a problem. Then a graduate student at the University of Utah, he was stumped with an issue never addressed in school: How does one film lice having sex?
Plants & Animals
Jun 11, 2019
1
261
When naturalist Charles Darwin stepped onto the Galapagos Islands in 1835, he encountered a bird that sparked a revolutionary theory on how new species originate. From island to island, finches had wildly varied beak designs ...
Evolution
Mar 5, 2019
2
1677
In October this year, the first salmon were farmed in a new fish production prototype in Trøndelag, Norway. With a rigid steel construction and a water current generator, the new Aquatraz fish cage both prevents fish escape ...
Ecology
Jan 2, 2019
0
7
The insects known as Hemiptera are not a particularly glamorous bunch. This group includes stink bugs, bed bugs, litter bugs, scale insects and aphids. Their closest relatives are thrips, bark lice and parasitic lice. But ...
Evolution
Nov 26, 2018
0
266
Everyone needs safe and clean water to drink. Yet industry, agriculture and urban activities threaten fresh water. In particular, metal pollution can be very hard to detect early. Because of this, scientists are always searching ...
Ecology
Aug 23, 2018
0
7
A study by Simon Fraser University aquatic ecologists Emma Atkinson and John Reynolds reveals that young salmon may jump out of water to remove sea lice.
Ecology
Aug 13, 2018
0
7
Salmon farming is facing a huge challenge in the form of a tiny pest. The parasitic sea louse is infecting salmon stocks worldwide, causing devastating losses for salmon farmers and increased prices for shoppers. But scientists ...
Ecology
Apr 12, 2018
0
5
Aquaculture, or fish farming, is one of the world's fastest growing food sectors, providing about half of all the fish we eat. As it stands, climate change is altering our ocean's environment, causing the seawater to become ...
Ecology
Apr 10, 2018
0
69
The vaccines used by commercial fish farmers are not protecting fish from disease, according to a new study.
Ecology
Jan 22, 2018
0
462
A team of researchers with the University of Oslo has found evidence that suggests human fleas and lice, not rodents, were behind the spread of the plague that killed millions of people over the course of several centuries. ...