Hollywood actor Leonardo DiCaprio has remembered environmental activist Jane Goodall as "an extraordinary woman" and "trailblazer" at the primatologist's funeral.The conservationist, who was a "dear friend" of DiCaprio's, and the world's leading expert on chimpanzee behaviour, died at the age of 91 in October.Environmentalist DiCaprio paid tribute to the scientist, who was a UN Messenger of Peace alongside the actor, in a service held at the Washington National Cathedral on Wednesday.

Hollywood actor Leonardo DiCaprio has remembered environmental activist Jane Goodall as "an extraordinary woman" and "trailblazer" at the primatologist's funeral.The conservationist, who was a "dear friend" of DiCaprio's, and the world's leading expert on chimpanzee behaviour, died at the age of 91 in October.Environmentalist DiCaprio paid tribute to the scientist, who was a UN Messenger of Peace alongside the actor, in a service held at the Washington National Cathedral on Wednesday.