Well, there have been several music lawsuits about certain songs and their amount of identity to others. If you were to write something as closely to another author that you are imitating something like trademark mannerisms there may be a case for that.
You use average for humans and up to for chimps? Also body weight is a far better comparison and a strong and large human can weigh at least 1.5 times more than a chimp so the strength difference isn’t great if at all present.
Humans get up to 2 m (6,75 feet) tall, of course there are even taller people but this is still a healthy size. Also chimps weigh like 70 kg max while a human can be healthy weigh more than 90 kg. The question is if we get a matched opponent in terms of strength and body weight relative to their own species.
Wasp I found in the garden, added some funny effects because it looks interesting