I think it has something to do with how they are animals. Also because some are inherently more dangerous like the wasps so rather than specifying, it is all of them.
[As they looked down at the lake, it did seem to be living up to the stories of its color changing abilities as the water creatures moved beneath the surface. Some of the larger, more intelligent creatures did make ventures over to look at them, but never tried to interact otherwise]
I like watching the lake, how everything moves and interacts there.
[And of course there is a warning]
If you see any clams here, don't take anything from them.