The London Zoo is being investigated after allegations that drunken, lucrative after-hours parties are putting the animals' welfare in danger. Hammered, sometimes naked guests have repeatedly tried to enter animal enclosures, and in one case, "a beer [was] thrown over a tiger," the Guardian reports.

Silverback gorilla Kesho and his little bro Alf were born and raised in Dublin Zoo, but were forced to spend the last two-plus years apart while Kesho was off in London trying to get his breed on.

Poor little Tiny the lowland gorilla is dead after sustaining injuries caused during an attack by his surrogate father Kesho, who was apparently became "jealous" of the defenseless tot and started a fatal fight. Kesho is definitely on our "Worst Gorillas in the World" list today.