Whether the first birds evolved from arboreal or terrestrial ancestors is a matter of lively debate among palaeontologists .
关于第一只鸟是从树栖还是陆生的祖先进化而来,一直是古生物学家激烈争论的话题。
That makes the fossils found within the rocks terrestrial and not marine , he contends .
他说;那些藏在岩石里的生物化石都是在陆地上被发现,而不是在海里。
Fly larvae are the top-level predator in the pitcher , the analogues of terrestrial tigers or wolves .
在猪笼草中,蝇幼虫是最高层次的捕食者,类似于陆地的老虎和狼。
Monochromatic vision is very rare among land species , because color vision is a tool for survival in terrestrial habitats .
单色视觉能力在陆地生物中非常罕见,因为分辨颜色的能力是陆地生物生存的一项工具。
" When pluto was first discovered in 1930 , it just looked like an oddball , " stern said . " We had the four rocky , terrestrial planets and the four big gas giants , and then we had this odd thing pluto . "
Since the largest dinosaurs have skeletons a lot larger than any living terrestrial species , such extrapolation is fraught with difficulty .
因为最大的恐龙的骨骼比任何现存陆地动物都要大很多,所以此类外推充满了困难。
Sampling both living terrestrial carnivores and the fossils of extinct ones , they analyzed overall brain volume relative to body mass in fully 289 species .
他们从陆地食肉动物和早已灭绝的肉食动物化石取样,对总共289个物种的整个脑容量与体重进行了分析。
This spotted leech scientifically named phytobdella catenifera of malaysia is a large terrestrial leech that can grow up to 5cm long .