living fossil
美英
- 网络活化石;孑遗生物

living fossil
1.an organism that is almost unchanged from early geological time and belongs to a group whose other members are extinct. Gingko trees and coelacanths are living fossils.
1
2
3
4
5
6
7
8
9
10
11
12
13
15
17
18
19
21
22
23
24
25
26
27
28
29