每日英語跟讀 Ep.K512: About Nature - Butterfly ‘tails’ might be part of an escape tactic
Tail-like extensions on some butterfly wings may be more than just stylish.
These break-away parts may help them survive attacks by hungry predators, new data suggest.
Birds are known to attack eyespots or head-shaped patterns on butterfly wings.
Because the tails tear off easily, attacked butterflies often can escape and fly away.
Those tails distract birds away from the prey’s most vulnerable body parts.
These eye-catching “tails” may have evolved as a decoy to keep hungry birds from grabbing a butterfly’s head or abdomen, scientists say.
The tails of some moths can interfere with the echolocation tactics of hungry bats.
Escaped king cobra crawls back to Swedish Terrarium 逃脫的眼鏡王蛇爬回瑞典飼養箱
A venomous 2.2-meter (7 foot) king cobra that escaped from its home in a Swedish zoo has returned back home by itself, bringing a happy ending to over a week-long disappearance saga.
“Houdini, as we named him, has crawled back into his terrarium,” CEO Jonas Wahlstrom of the Skansen Aquarium told the Swedish public broadcaster SVT on Sunday.
The deadly snake, whose official name is Sir Vass, escaped on Oct. 22 via a light fixture in the ceiling of its glass enclosure at the aquarium.
As a result of an intensive search with X-ray machines, “Houdini” was located earlier this week in a confined space near the terrarium in the insulation between two walls.
Holes were drilled into the walls where the snake was hiding but the cobra disappeared from the view of the X-ray cameras in the early Sunday. It turned out the snake had given up its freedom ride and crawled back to its terrarium.
蛇藏身的牆壁上被鑽了幾個洞，但這條眼鏡蛇週日稍早從X光攝影機的視野中消失了。原來這條蛇放棄自由行，爬回牠的飼養箱。Source article: https://features.ltn.com.tw/english/article/paper/1561560 ; https://features.ltn.com.tw/english/article/paper/1551362