The sycomore fig tree and the fig wasp share a curious and important co-dependency.

(Airs Sunday, August 30) It may be one of nature's oddest couples: a tiny wasp and a giant fig tree. The wasp and the fig depend on each other for survival.

With over 25,000 unique species, Hawaii is one of the most biologically diverse regions on the planet. These animals and plants live in a delicate balance.

Imagine being eaten alive -- from the inside out! That is what happens to any caterpillar unlucky enough to become the nest for an egg laid by a caterpillar wasp.

Life is no picnic:amidst the carefully planted flowers and neatly clipped grass there lies a hidden world which is revealed in the NATURE program SECRET GARDEN.

Life is no picnic:amidst the carefully planted flowers and neatly clipped grass there lies a hidden world which is revealed in the NATURE program SECRET GARDEN.

Life is no picnic:amidst the carefully planted flowers and neatly clipped grass there lies a hidden world which is revealed in the NATURE program SECRET GARDEN.

Life is no picnic:amidst the carefully planted flowers and neatly clipped grass there lies a hidden world which is revealed in the NATURE program SECRET GARDEN.