All plants [ flora ] need water and light.一切 草木 都需要水和阳光.A vacant lot or a bombsite can, to the amateur naturalist, produce an extraordinary variety of flora and fauna.对于业余博物学者来说，在一片空地上或被炸后的废墟里可能发现种类繁多的植物群和动物群。Flora Manho...
另一种可能性是亲鸟会偏爱强壮的雏鸟。Another possibility is that parents favour chicks that are strong.那只蛋的壳厚0.14毫米，新孵出的雏鸟重9克。The egg had a shell thickness of 0.14mm and the newly-hatched chick weighed nine grams.雏鸟出壳后不久就不见了。The young disa...