TY  - GEN
AU  - Harcourt,S
TI  - Endangered species
SN  - 0028-0836
PY  - 1991///1211
KW  - Animals
KW  - Animals, Wild
KW  - Population Dynamics
N1  - Publication Type: Comment; Letter
UR  - https://doi.org/10.1038/354010a0
ER  -