Frogs scared to go into water?

This is really interesting! I don’t know a ton about amphibians (and even less about their behavior) but maybe it’s a behavioral response to limit adult and infant interactions and possibly infanticide? Or more likely fear of predators? I wouldn’t put it past bull frogs to eat green frogs. Maybe they know it is frequented by bull frogs through olfactory signals and can smell that after jumping in and pull the age-old “I regret everything” and bail? I’m not sure this is so funny!