Humbalulu is an elusive animal. It is red and green, and some of them can fly. Not all, but a select few. I'm not exactly sure how many, since there are so few in the world. They live in the ocean and sometimes on roads. Which roads remains to be seen, since most roads are too busy for the shy creature. They eat snakes. I guess they eat the ones that venture too close to the ocean or too close to a road. They also eat one berry. It doesn't matter what kind of berry, but only one a day. I suppose this is what gives them the magical powers to fly. This is all that is known about the Humbalulu.
Isaac spent most of our vacation discussing Humbalulu and its various attributes. This began when David's sister taught the kids how to play "20 questions" the animal version on a long drive across the island. With questions like, "where do you live?" and "what do you eat?" Isaac's little imagination went crazy. Hence the Humbalulu was born. Kalena soon got in on the action, and eventually they were calling everyone and everything around them Humbalulu. So if you see a red and green creature munching a snake on a road, you'll know just what it is.