At the shores of an oxbow lake on a sunny afternoon, hundreds of butterflies gather to extract salts and minerals as the lake water evaporates from the shallows. Here we see Pale Sulphurs, Straightline Sulphurs, Common Swordtails, and more. Anangu Lake, Ecuador
Pteronura brasiliensis The long snake-like neck of the otter is clearly visible in this image. Giant otters are very near the top of the food chain in the Amazon Basin. Their large size, powerful claws and jaws, and ability to work together as a group make them a formidable foe for any potential challenger. Most animals give them a wide berth. Napo River, Ecuador
