Hyloscirtus
Most of these frogs live in the hills and mountains in the Andes mountain range.  They live as far south as Bolivia and as far north as Venezuela. A few species live in places near the Andes that are not hills are mountains.  These places are called páramo. Two species (H. colymba and H. palmeri) live in Panama and Costa Rica. They live near streams where they lay their eggs. Some of the species in this genus are dying out.  This is because humans change the places where they live, because of pollution, because humans brought new animals that eat the same food, because humans brought trout, whuch eat them, and because the chytrid fungus Batrachochytrium dendrobatidis makes them sick.