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Showing posts with label flying. Show all posts
Showing posts with label flying. Show all posts
Unfamiliar Species Are Endangered
Endangered species in Australia tend to be those that do not fair well in human affection. Plenty is spent on koalas because they are seen as cuddly. In reality though they are not. Indeed, if one attempts to pick up a wild koala it goes on an all out attack if it cannot get away.
Some endangered animals are not exactly ugly. The grey-headed flying fox, a bat, is quite cute as shown in the photo. It is just not in the mainline thinking of people. The average person knows very little about it.
Many cringe when the word "bat" is mentioned. They do carry some diseases, but cases where bats pass these on to humans are quite rare. The grey-headed bat is Australia's largest and is responsible for pollination of many plants, mostly trees.
There are more than 19,000 threatened species in Australia, 1,000 of them mammals. Some species that could be saved with a small amount of money are not helped, while others such as koalas get too much money. Koalas are being pampered to death if that is possible. Too much human intervention can do more harm than good.
Conservation
"Extinct" Animals Are Still With Us
Animals are going extinct, though some are still turning up. This is true. In the past 100 years many species have been declared extinct. Oddly, a third of these have been found still living. Many have not been seen for a very long time. This is the reason for them still being around.
The okapi a zebra-like animal was recently re-found in the Congo. In Cuba the solenodon "rat" was seen jumping around. Another find was the Indonesian Talaud Flying Fox. In Australia the rock rat was identified. And the Christmas Island shrew came to light.
This is embarrassing for the conservationists about to meet in Japan at the United Nations Summit on Biodiversity. It appears that emotion has won out over rationality. It is too easy to make predictions about what will happen in the future. With climate change, little real knowledge is available to researchers, though change is occurring. Perhaps now more cautious steps will be taken.
The okapi a zebra-like animal was recently re-found in the Congo. In Cuba the solenodon "rat" was seen jumping around. Another find was the Indonesian Talaud Flying Fox. In Australia the rock rat was identified. And the Christmas Island shrew came to light.
This is embarrassing for the conservationists about to meet in Japan at the United Nations Summit on Biodiversity. It appears that emotion has won out over rationality. It is too easy to make predictions about what will happen in the future. With climate change, little real knowledge is available to researchers, though change is occurring. Perhaps now more cautious steps will be taken.
Society
Australian Blog★
Mosquitoes Fly on After Being Hit by Raindrops
Mosquitoes are extremely robust. They can survive being hit by raindrops 50 times their size. The insect is knocked down a little by the raindrop travelling at 300 times normal gravity, but it recovers and flies on.
This attribute was discovered by videoing insects actually being hit by raindrops from artificial rain. There was no improvement in stopping the spread of malaria. Better ways of designing tiny flying robots was enhanced, however, because rain tends to knock mechanical drones off course. Even aeroplanes are detrimentally affected by rain.
The raindrops on mosquitoes tests were exciting to watch. As the rain hit them they dropped, then recovered and sheltered on the wall of the test area. They fell an average of 13 body lengths. Nearly all hits were glancing blows which made mosquitoes roll, pitch and yaw. A direct hit led to a fall of 20 body lengths.
The theory is that mosquitoes are so small the speed of raindrops falling to earth is not affected, This means little energy is transferred to mosquitoes by collisions.
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Science
Extinct Animals Are Still With Us
Animals are going extinct, though some are still turning up. This is true. In the past 100 years many species have been declared extinct. Oddly, a third of these have been found still living. Many have not been seen for a very long time. This is the reason for them still being around.
The okapi a zebra-like animal was recently re-found in the Congo. In Cuba the solenodon "rat" was seen jumping around. Another find was the Indonesian Talaud Flying Fox. In Australia the rock rat was identified. And the Christmas Island shrew came to light.
This is embarrassing for the conservationists about to meet in Japan at the United Nations Summit on Biodiversity. It appears that emotion has won out over rationality. It is too easy to make predictions about what will happen in the future. With climate change, little real knowledge is available to researchers. Perhaps now more cautious steps will be taken.
The okapi a zebra-like animal was recently re-found in the Congo. In Cuba the solenodon "rat" was seen jumping around. Another find was the Indonesian Talaud Flying Fox. In Australia the rock rat was identified. And the Christmas Island shrew came to light.
This is embarrassing for the conservationists about to meet in Japan at the United Nations Summit on Biodiversity. It appears that emotion has won out over rationality. It is too easy to make predictions about what will happen in the future. With climate change, little real knowledge is available to researchers. Perhaps now more cautious steps will be taken.
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