本期內容：

Rising temperatures may be having a profound physical impact on one of the world's favourite songbirds.
Researchers in Spain found that over a 20-year period, nightingales had evolved smaller wingspans.
The scientists say this is linked to a changing climate in the region which has seen the early onset of spring and increased drought.

rising adj. 上升的
• rising sea level: 上升的海平面
have a profound impact on: 對……有深遠影響
songbird n. 鳴禽
• light-winged Dryad of the trees: 羽翼翩翩的樹精（來自英國詩人John Keats濟慈的《夜鶯頌》）

period n. 一段時間，時期
evolve vt. 進化
(change gradually over a long period of time)
wingspan n. 翼展

be linked to: 和……有關（be associated with）
the onset of sth.: ……的開始（the beginning of sth.）



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