I read the entire sentence, but had not yet read the article, and had not had my morning coffee yet. After looking through the article, given the context it's

I read the entire sentence, but had not yet read the article, and had not had my morning coffee yet. After looking through the article, given the context it's pretty obvious they were probably referring to Amphibians. The sentence is poorly worded, because when a human is in water, it's an animal in water. Through that lens alone it makes no sense.