Elephants are most impressive. A fully grown adult male will weight around 6,000kg (13,000lbs). The largest recorded specimen (in Angola 1956) was about 11,000kg (24,000lbs).
But for me the most impressive side is their intelligence. Whenever I meet them on Safari their behavior in such encounters sets them apart from all other mammals (with the exception of Primates). They are far less predictable than any other species and therefore have to be treated with a lot of respect and caution.
I met this beautiful specimen a few years ago in Namibia. And I will probably not surprise you when I tell you that I respectfully withdrew from his path 😊