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Sex determination in birds

Sex determination in birds

Posted Tue, 29 May 2012 23:01:00 GMT by Dave Armstrong

The ZZW hen is female to start with but develops male characteristics and produces no fertile gametes (eggs OR sperm). Except that is for the ZZW Kentish plover, noted in the study of sex determination in birds.

Sex determination in birds

Earthquakes are always big news - or are they?

Earthquakes are always big news - or are they?

Posted Sat, 26 May 2012 11:02:39 GMT by Michael Evans

Earthquake prediction is an inexact science and the recent Italian earthquake has highlighted the danger of not taking adequate precautions. An Anglo-Russian satelite programme hopes to be able to use electromagnetic signals as a means of early warning.

Earthquakes are always big news - or are they?

Placentals ruled before the Cretaceous

Placentals ruled before the Cretaceous

Posted Thu, 24 May 2012 12:09:00 GMT by Dave Armstrong

Theropod dinosaurs ruled the earth then died out in the Cretaceous, leaving the little mammals to diversify. Many genomes are now examinable for signs of diversification in these species' past.

Placentals ruled before the Cretaceous

When dinosaurs ruled the Pampas

When dinosaurs ruled the Pampas

Posted Wed, 23 May 2012 10:40:33 GMT by Dave Armstrong

In Patagonia, which was part of southern Gondwanaland, a very early complete (almost) theropod dinosaur example has been found from the middle of the Jurassic period, 40 million years before any relative.

When dinosaurs ruled the Pampas

Robo-fish uses arti-fish-ial intelligence to find pollution

Robo-fish uses arti-fish-ial intelligence to find pollution

Posted Tue, 22 May 2012 13:27:20 GMT by Adrian Bishop

Robotic fish used to find pollution. A four-foot robot fish that uses artificial intelligence to track, find and record water pollution is being tested.

Robo-fish uses arti-fish-ial intelligence to find pollution

Pollination: Flowers are masters of reproduction

Pollination: Flowers are masters of reproduction

Posted Fri, 18 May 2012 15:16:00 GMT by Adrian Bishop

American university researchers have found how flowers have an efficient way of reproducing, ensuring that fertilisation is successful even if the initial pollen is faulty.

Pollination: Flowers are masters of reproduction

Where, how and what do an ant and a pitcher plant exchange?

Where, how and what do an ant and a pitcher plant exchange?

Posted Wed, 16 May 2012 10:28:34 GMT by Dave Armstrong

Mutual benefits of a relationship between an ant species and pitcher plant; mutualism. Only one of the 120 species of the Nepenthes genus has been found so far to use a single plant - ant species within its tissues to help out.

Where, how and what do an ant and a pitcher plant exchange?

History of a giant salamander (Dicamptodon tenebrosus)

History of a giant salamander (Dicamptodon tenebrosus)

Posted Sun, 13 May 2012 15:03:00 GMT by Dave Armstrong

Ecology of coastal giant salamanders, (Dicamptodon tenebrosus). Research into the genetic structure and history of giant salamander populations in the United States and Canada.

History of a giant salamander (Dicamptodon tenebrosus)

LED street lights save millions each year

LED street lights save millions each year

Posted Thu, 10 May 2012 19:16:22 GMT by Adrian Bishop

Eco-friendly LED street lights are saving million of dollars each year in town and city power bills and are reducing carbon emissions.

LED street lights save millions each year

The Dwarf Mammoth of Crete: Mammuthus Creticus

The Dwarf Mammoth of Crete: Mammuthus Creticus

Posted Tue, 08 May 2012 23:09:00 GMT by Dave Armstrong

The smallest species of mammoth that ever existed lived on Crete. Fossils of Mammuthus creticus, a dwarf mammoth, were discovered on the Greek island.

The Dwarf Mammoth of Crete: Mammuthus Creticus

They're after Iceman Oetzi's 5300-year-old blood!

They're after Iceman Oetzi's 5300-year-old blood!

Posted Wed, 02 May 2012 21:18:15 GMT by Dave Armstrong

Oetzi the iceman should not have had any blood preserved for the length of time (5,300 years) he has been lying in the mountains. But, as ever with this persistent man, Oetzi has come up trumps.

They're after Iceman Oetzi's 5300-year-old blood!

Fossil fish: Rebellatrix the 'rebel coelacanth'

Fossil fish: Rebellatrix the 'rebel coelacanth'

Posted Wed, 02 May 2012 19:00:00 GMT by Adrian Bishop

A 'rebel' coelacanth (Rebellatrix) killer fish fossil found in Canada dating back 240 million years has been described for the first time.

Fossil fish: Rebellatrix the 'rebel coelacanth'

Groundwater resources mapped in Africa

Groundwater resources mapped in Africa

Posted Sat, 21 Apr 2012 08:47:02 GMT by Dave Armstrong

Groundwater storage in Africa has been mapped. Authors of a new study argue that groundwater has to be crucial for Africa's future water supplies.

Groundwater resources mapped in Africa

The Game of Life

The Game of Life

Posted Wed, 18 Apr 2012 13:21:00 GMT by Paul Robinson

Advanced social behaviour of higher primates, cetaceans and a few others are investigated in a unique experiment with 96 undergraduates in a Sims-like virtual world.

The Game of Life

Biological community building

Biological community building

Posted Wed, 18 Apr 2012 12:08:00 GMT by Dave Armstrong

Scientists have approached the community of plants and animals that builds in a natural habitat from a novel direction in a new study. Using caves as isolated, extreme habitats for a community, they worked out whether the organism's niche acts as a mechanism to keep the community operating in an ecosystem.

Biological community building

Island diversity using hosts

Island diversity using hosts

Posted Wed, 18 Apr 2012 10:57:41 GMT by Dave Armstrong

An international group of scientists have researched an age-old problem of genetic diversity on islands.

Island diversity using hosts

Scitech News Archives Page : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 

Bees = humans, in false memory at least.

Posted Sun, 01 Mar 2015 19:00:00 GMT by Dave Armstrong

Dragons increase in species numbers.

Posted Wed, 18 Feb 2015 08:10:06 GMT by Dave Armstrong

Pollution: chemical weapons destroyed in US

Posted Wed, 04 Feb 2015 10:55:21 GMT by Dave Armstrong

Fascinating new squid behaviour in nature

Posted Wed, 28 Jan 2015 16:20:00 GMT by Dave Armstrong

Chimpanzee losses and successes.

Posted Thu, 22 Jan 2015 16:46:05 GMT by Dave Armstrong

Bats fly high and DNA techniques are classy

Posted Mon, 12 Jan 2015 19:51:01 GMT by Paul Robinson

Pluto approached by "strange" probe

Posted Tue, 06 Jan 2015 11:17:02 GMT by Dave Armstrong

Astronomers rule (in their universe)

Posted Thu, 01 Jan 2015 10:15:11 GMT by JW Dowey

Mammals that cannot see in the light

Posted Sat, 27 Dec 2014 11:02:11 GMT by JW Dowey

A giant leap for frog-kind.

Posted Fri, 19 Dec 2014 09:34:00 GMT by Dave Armstrong

Humans certainly know how to wander - but where and when?

Posted Tue, 21 Aug 2012 20:19:00 GMT by Dave Armstrong

Turtle hatchlings as robots?

Posted Wed, 24 Apr 2013 19:02:16 GMT by Dave Armstrong

The Neander Valley has a lot to answer for!

Posted Wed, 13 Mar 2013 17:11:48 GMT by Dave Armstrong

Thermo-learning from Nest Labs

Posted Tue, 25 Oct 2011 22:17:00 GMT by Dave Armstrong

Comets helped bring about life on Earth

Posted Tue, 27 Mar 2012 21:00:00 GMT by Adrian Bishop

Human brain and body mass

Posted Wed, 24 Oct 2012 17:58:00 GMT by Dave Armstrong

Feathered dinosaur discovered in China - Yutyrannus huali

Posted Thu, 05 Apr 2012 15:03:00 GMT by Dave Armstrong

Neanderthals and us, the true story

Posted Fri, 02 May 2014 11:52:00 GMT by JW Dowey

Old Hubble images reveal new planets' orbits

Posted Fri, 07 Oct 2011 01:09:01 GMT by Dale Kiefer

Massive ocean studies raise grim possibilities for European climate

Posted Thu, 07 Apr 2011 18:02:00 GMT by Colin Ricketts