A juice company dumped orange peels in a national park. Here's what it looks like now.

A juice company dumped orange peels in a national park in Costa Rica, free of charge, in a heavily grazed, largely deforested area nearby.

The site was left untouched and largely unexamined for over a decade.

Researchers from Princeton University studied the site over the course of the following three years.

Researchers found a tayra (a dog-sized weasel) and a giant fig tree three feet in diameter, on the plot.

The sign has been buried for 19 years thanks to a flash of inspiration and the rind of an unassuming fruit.

The science fair winner is taking on global drought using oranges and avocados.

"It's a big honking sign," Choi says of the sign.