Animals
Dave Hackenberg of central Pennsylvania had 3,000 hives and figures he has lost all but about 800 of them.
In labs at Pennsylvania State University, the Pennsylvania Department of Agriculture, and elsewhere in the nation, researchers have been stunned by the number of calls about the mysterious losses.
Bee numbers on parts of the east coast and in Texas have fallen by more than 70 percent, while California has seen colonies drop by 30 to 60 percent.
According to estimates from the US
Department of Agriculture, bees are vanishing across a total of 22 states, and for the time being no one really knows why.
A new study supports the case. With the large predators gone, their prey - smaller sharks and rays - are free to feast on lower organisms like scallops and clams, depleting valuable commercial stocks.
The research team found that the mysterious deaths of scores of turtles, bottlenose dolphins and manatees back in 2005 off the southwest coast of Florida was likely caused a neurotoxin that was emitted from the red tide, The Washington Post said.
The Working Group on Marine Mammal Unusual Mortality Events study determined that brevetoxin was the likely culprit in the deaths after examining 130 stranded dolphins.
The purple milkweed butterfly, which winters in the south of the island, passes over some 600m of motorway to reach its breeding ground in the north.
Many of the 11,500 butterflies that attempt the journey each hour do not reach safety, experts say.
Protective nets and ultra-violet lights will also be used to aid the insects.
The flies spend several years in a riverbed, in a nymph stage.
When they emerge in late May or early June for action-filled lives lasting about a week, they do so in a gossamer blizzard, numbering in the tens of thousands.



