每日英語跟讀 Ep.981: About Nature - Key to butterfly climate survival may be colour coded
A butterfly’s ability to absorb or reflect heat from the sun with its wings could be a matter of life and death in a warming world, according to British research published Thursday calling for gardens, parks and farms to host shady, cooling-off spots.
While all butterflies are ectotherms － they cannot generate their own body heat － the ability to regulate temperature varies significantly, researchers said.
The study found that bigger, pale-coloured butterflies, like the Large White or Brimstone species, are better at thermoregulation because they can angle their wings to reflect the sun’s heat either away from them or onto their bodies to attain the right temperature.
Gray parrots separated at zoo after swearing a blue streak 動物園灰鸚鵡因髒話不斷而被分開
A British zoo has had to separate five foul-mouthed parrots who keepers say were encouraging each other to swear.
Billy, Eric, Tyson, Jade and Elsie joined Lincolnshire Wildlife Centre’s colony of 200 gray parrots in August, and soon revealed a penchant for blue language.
"We are quite used to parrots swearing, but we’ve never had five at the same time," said the zoo’s chief executive, Steve Nichols. "Most parrots clam up outside, but for some reason these five relish it." Nichols said no visitors had complained about the parrots, and most found the situation funny.