[briandear]

I would expect humans to protect humans. There aren't any hippos out their attempting to preserve humanity. Hippos look after hippos at the expense of all other species. I can't see how we 'overprotect'

[jeremysmyth]

Hippos look after hippos at the expense of all other species.

Interesting claim. How do hippos know about the affairs of all other species, let alone the hippos in the next valley? I think you're overanthropomorphising.