In the sand, some of the three-toed bird tracks were small, and so faint they could hardly be seen. Other tracks were large, and cut deeper in the sand. Tina was looking idly at the tracks when she heard a chirping, followed by a rustling in the mangrove thicket.

Did sloths make a chirping sound? Tina didn't think so, but she wasn't sure. The chirping was probably some ocean bird. She waited quietly, not moving, hearing the rustling again, and finally she saw the source of the sounds, A few yards away, a lizard emerged from the mangrove roots and peered at her.

Tina held her breath. A new animal for her list! The lizard stood up on its hind legs, balancing on its thick tail, and stared at her. Standing like that, it was almost a foot tall, dark green with brown stripes along its back. Its tiny front legs ended in little lizard fingers that wiggled in the air. The lizard cocked its head as it looked at her.

Tina thought it was cute. Sort of like a big salamander. She raised her hand and wiggled her fingers back.

The lizard wasn't frightened. It came toward her, walking upright on its hind legs. It was hardly bigger than a chicken, and like a chicken it bobbed its head as it walked. Tina thought it would make a wonderful pet.

She noticed that the lizard left three-toed tracks that looked exactly like bird tracks. The lizard came closer to Tina. She kept her body still, not wanting to frighten the little animal. She was amazed that it would come so close, but she remembered that this was a national park. All the animals in the park would know that they were protected. This lizard was probably tame. Maybe it even expected her to give it some food. Unfortunately she didn't have any. Slowly, Tina extended her hand, palm open, to show she didn't have any food.

The lizard paused, cocked his head, and chirped.