Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Sunday

The biggest blunder in Australia's history

Cane toads are a poisonous South American frog that can grow as big as dinnerplates and breed like rabbits and would have to be the biggest blunder in Australia's history as scientists, paid by the Australian government, went overseas to collect canetoads and returned to Australia and set about thirty of them free in North Queensland in 1933.


The idea was that they would eat the beetles that were causing economic damage eating the sugarcane but unfortunately the cane toads never touched the beetles but helped themselves to everything else they could find. Wildlife smaller than them they will kill and eat, wildlife bigger than them will eat them and die from the poison they have in glands on their back.

The thirty toads that were introduced initially have now multiplied into the countless millions and are spreading across Australia and have recently arrived in Kakadu, Northern Territory where it is expected they will devastate the place as there are vast floodplains which are the perfect breeding ground for them. They seem to be adapting to the Australian conditions/distances too, scientists are studying the toxic pests' entry in to the NT, clocking them hopping up to 2km in a single night, or more than 50km a year - five times quicker than their predecessors travelled in the 1940s to 1960s.

Some birds have actually adapted and learned how to turn them over and eat their insides avoiding the poison glands on the back.

Ingenious Australians have also used the toads to make wallets, stubby coolers etc.

Saturday

RoboCroc

AS if a 3m croc need's any help looking scary! Experts have rebuilt this injured animal's face...


Be afraid ... a 3m crocodile whose face was crushed by a car has been transformed into "RoboCroc" after reconstructive surgey at Miami's Metrozoo


Major operation ... the Miami team sets about the reconstructive surgery that will hopefully allow the croc to hunt and eat again. It's believed that the croc had been unable to eat for three months after the accident.


Spit and polish ... one of the team cleans up RoboCroc after his reconstructive surgery.


Close up... a final check of the rebuilt snout

Friday

Learning & Brain Sciences


This undated handout photo provided by P. K. Kuhl, Institute for Learning & Brain Sciences and the LIFE Center, University of Washington, shows a nine-month-old Finnish girl listening to the sounds of English, Finnish and Mandarin Chinese while in a MEG machine.

The best age to learn a foreign language: Between birth and 7. Missed that window?

New research is showing just how children's brains can become bilingual so easily, and scientists are trying to turn those findings into technology that helps adults learn a new language a bit easier.