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Flatworm Sexuality

Flatworm Sexuality

Posted Mon, 17 Oct 2011 21:57:00 GMT by Dave Armstrong

The Turbellarian flatworms are cute, minute slug-like metazoans that are so primitive, they haven’t got a body space (or coelom) like the rest of the animal nation. We know that some flatworms, such as Dugesia, have at least three races with different reproductive modes: asexual race, sexual race, and physiological race.

Flatworm Sexuality

Piranha Pop

Piranha Pop

Posted Thu, 13 Oct 2011 22:27:01 GMT by Dave Armstrong

Messrs Millot, Vandewalle and Parmentier took some piranhas to Liege and lost half of a finger. In the process, though, they managed to record the Red Belly sound. The red-bellied piranha, Pygocentrus nattereri has a good bark when it is picked up from the water, as do many of its kind.

Piranha Pop

Bringing up (T. rex) Baby

Bringing up (T. rex) Baby

Posted Thu, 13 Oct 2011 16:18:00 GMT by Dave Armstrong

Five brave researchers have completed a computer analysis of Tyrannosaurus rex, looking especially at the implications for locomotion, ontogeny and growth. Giant dinosaurs grew quickly as far as we know, and the process is ultimately fascinating to everyone. From a 10 kg hatch weight to the 6000 kg adult Tyrannosaurus rex in 20 years is a speedy growth of a kind rarely found outside theropod dinosaurs.

Bringing up (T. rex) Baby

Birds like it sweet, bees like it sweeter

Birds like it sweet, bees like it sweeter

Posted Thu, 13 Oct 2011 09:16:00 GMT by Dale Kiefer

MIT mathematicians delved into the arena of biology recently to explore optimization in nature. It turns out, bees are 'dippers' who feed by probing flowers with their tongues. For them, a thicker, sweeter fluid is best. But birds and butterflies draw nectar through thin tubes, and that's easier when flowers supply a thinner, less sugary fluid.

Birds like it sweet, bees like it sweeter

Release the 'Kraken', well the Artistic Triassic Cephalopod

Release the 'Kraken', well the Artistic Triassic Cephalopod

Posted Mon, 10 Oct 2011 14:07:00 GMT by Dave Collier

A strange explanation is given for a puzzling arrangement of Triassic era fossils. It could seem strange to apply the word 'artistic' to a Triassic creature but an in-depth examination of Ichthyosaur fossils has renewed the general confusion about what happened to the animals on display at Nevada's Berlin-Ichthyosaur State Park.

Release the 'Kraken', well the Artistic Triassic Cephalopod

Polar photography exhibition by Earth Times writer Louise Murray

Polar photography exhibition by Earth Times writer Louise Murray

Posted Sat, 08 Oct 2011 17:55:00 GMT by Louise Murray

The Earth Times environmental writer and award-winning photographer Louise Murray has a new exhibition of her polar photography at the Lacock Photography Gallery in the UK from October 15th 2011 to 31st January 2012.

Polar photography exhibition by Earth Times writer Louise Murray

Jumping like a fish out of water

Jumping like a fish out of water

Posted Thu, 06 Oct 2011 17:20:00 GMT by Dave Armstrong

Prof. Alice Gibb watched the catch jump from the net back into the water. It had jumping skills and knew what it wanted to do. Her study of feeding behaviour was abandoned and 'studies of stranding' became the new research aim. By now, she has achieved unbelievable results relevant to the (possibly frequent) evolution of land vertebrates from the fish, more than 300 million years ago.

Jumping like a fish out of water

Acrocanthosaurus atokensis dino tracks discovered in Arkansas

Acrocanthosaurus atokensis dino tracks discovered in Arkansas

Posted Thu, 06 Oct 2011 09:29:00 GMT by Dave Armstrong

Discovery of giant tracks from the Cretaceous in Arkansas from 120 million years ago. Acrocanthosaurus atokensis is one of the largest carnivores that ever existed. It is likely that the 60 cm x 30 cm footprint fit its profile, perfectly preserved in the desert-like Cretaceous mud.

Acrocanthosaurus atokensis dino tracks discovered in Arkansas

Largest ever butterfly map completed

Largest ever butterfly map completed

Posted Wed, 05 Oct 2011 15:37:00 GMT by Colin Ricketts

A European atlas recording the distribution of all of Europe's 441 butterfly species will be a vital tool to record how climate change is affecting these lovely creatures. The work of 272 field volunteers, say the publishers, has been vital to this grand new publication project.

Largest ever butterfly map completed

Tasmanian Devils fight hardest battle yet

Tasmanian Devils fight hardest battle yet

Posted Wed, 05 Oct 2011 13:21:00 GMT by Colin Ricketts

The Tasmanian Devil, an animal with a ferocious reputation is fighting for its life against an infectious cancer that is now beyond culling control according to a new study. While culling of diseased livestock is a relatively common agricultural practice, it remains controversial where wild animals are concerned.

Tasmanian Devils fight hardest battle yet

Chick attacks highlighted in study on the Nazca booby

Chick attacks highlighted in study on the Nazca booby

Posted Wed, 05 Oct 2011 07:26:00 GMT by Dave Armstrong

Nazca Boobies, related to other ocean travellers such as the famous wandering albatross, live in the Galapagos. Unfortunately, parents have to leave nestlings frequently to fish long-distance. On the islands, such as this booby colony on Isla Espanola, there is an intense interest by certain adults in unrelated chicks, especially when its parents are necessarily absent for long periods.

Chick attacks highlighted in study on the Nazca booby

Video documents tool use by wild fish

Video documents tool use by wild fish

Posted Sun, 02 Oct 2011 18:02:00 GMT by Dale Kiefer

A new video documents, for the first time, tool use by a fish. The video shows an orange-dotted tuskfish - a type of Wrasse—digging a clam out of the sand, carrying it in its mouth and swimming some distance to an appropriate location, before repeatedly flinging the bivalve against a reef rock to break its hard shell and expose the tasty flesh within.

Video documents tool use by wild fish

Elephants can take the heat

Elephants can take the heat

Posted Sun, 02 Oct 2011 16:11:01 GMT by Dale Kiefer

New research shows how elephants have adapted to extreme heat in a manner similar to desert mammals such as camels. Elephants have evolved a novel strategy for regulating body temperature, which allows them to endure soaring temperatures during the day without succumbing to heat stress.

Elephants can take the heat

First Usain Bolt, and now, Bats

First Usain Bolt, and now, Bats

Posted Sat, 01 Oct 2011 18:25:00 GMT by Dave Armstrong

The unique audio reception of the bats is aided by this truly freaky muscle that contracts 100X faster than normal muscle and 20X faster than the fastest human muscle, surrounding the eye. Weep ye who admire Mr. Bolts 100 metres: this bat could do it a little better, in 0.1 seconds!

First Usain Bolt, and now, Bats

Beetles keeping it bottled-up

Beetles keeping it bottled-up

Posted Fri, 30 Sep 2011 16:17:05 GMT by Dave Armstrong

The resemblance of a beer bottle to a female has been mooted in the past, but rarely remembered the morning after. An Australian (beetle) has now confirmed that 'stubbies' are better! The male Buprestid (jewel) beetle, Julodimorpha bakewelli, is often noticed lolling around near brown beer bottles (stubbies) in Australia.

Beetles keeping it bottled-up

A Frog's tale

A Frog's tale

Posted Fri, 30 Sep 2011 12:06:00 GMT by Dave Armstrong

Australian researchers have found that green tree frogs Litoria spp. use condensation in the same way as windows on frosty mornings. During the dry season from June to September, Ozzy water is a precious commodity. These enterprising Amphibia expose themselves in such a way as to gather the air's excess moisture when temperatures plummet.

A Frog's tale

Nature 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 24 25 26 27 28 29 30 

Gibbon families grow larger with bi-female groups.

Posted Tue, 14 Apr 2015 08:06:05 GMT by Dave Armstrong

The owl and the butterfly - and mimicry

Posted Wed, 08 Apr 2015 08:50:00 GMT by Paul Robinson

April Fools, with the naughty bits explained!

Posted Thu, 02 Apr 2015 09:48:52 GMT by JW Dowey

The Ancient Romance of Samarqand.

Posted Sat, 28 Mar 2015 04:30:00 GMT by Dave Armstrong

Will we release these reincarnated mammoths?

Posted Sun, 22 Mar 2015 17:54:49 GMT by Paul Robinson

Navigating the Atlantic as a giant turtle.

Posted Wed, 11 Mar 2015 05:00:00 GMT by JW Dowey

How mantis control their leaps.

Posted Thu, 05 Mar 2015 20:05:00 GMT by Dave Armstrong

Great Lakes Puzzles (or Lessons) for Ecologists.

Posted Tue, 24 Feb 2015 20:16:00 GMT by Dave Armstrong

Our evolution from jelly!

Posted Fri, 20 Feb 2015 09:40:00 GMT by Dave Armstrong

Cooperative fin whales in Baja California

Posted Tue, 17 Feb 2015 09:10:01 GMT by Dave Armstrong

Whale evolution resolved, but only slightly.

Posted Wed, 14 Jan 2015 10:36:04 GMT by JW Dowey

Comparing cities and blood systems with Atta forest ants

Posted Wed, 15 Feb 2012 00:05:00 GMT by Dave Armstrong

Sperm whales speak with regional accents

Posted Sat, 14 May 2011 09:11:00 GMT by Lucy Brake

Woolly mammoth range dynamics are discovered

Posted Wed, 11 Sep 2013 06:48:00 GMT by Dave Armstrong

Tiny Australian crayfish is brand new species

Posted Wed, 09 Apr 2014 07:55:00 GMT by Dave Armstrong

In the crowded canopy, fruit bats get flexible with sonar

Posted Tue, 13 Sep 2011 21:01:01 GMT by Martin Leggett

Snow Leopard spotted in Afghanistan

Posted Thu, 14 Jul 2011 12:01:23 GMT by Kieran Ball

The siren call of the vine - how plants lure bats in for supper

Posted Thu, 28 Jul 2011 18:00:00 GMT by Martin Leggett

Fungus from California suspected of killing cypress trees worldwide

Posted Sat, 03 Sep 2011 13:11:00 GMT by Gracie Valena

'Songs For Japan' album released

Posted Mon, 28 Mar 2011 14:36:00 GMT by Andy Tillett