The conservationist, 48, said the species was not strong enough to survive on its own and it would be better to let nature take its course.

• 48岁的派克汉姆本人也是生态环境保护者。他以为，大熊猫自身不够强壮以至于无法确保自我生存，那么最好就是顺应自然让它灭亡。