Hippopotamus, Maasai Mara National Reserve, Kenya

I look for two things when photographing hippos — being out of the water and having the mouth open. This guy granted me both as we drove past. Although it looks as if he might have been reacting to us, he was simply letting out a good yawn. Photographed in the Maasai Mara National Reserve of Kenya. Nikon D500 with Nikkor 200-400mm lens (at 400mm) ISO 400, f/4 at 1/2000th of a second.