1.   We always said that he had a yellow belly!

2.   If a watermelon is ripe, they cut the vine near where it meets the melon and flip the melon over so its yellow belly is facing upward.

3.   Palm warblers, with springtime chestnut caps and yellow bellies, are said to enjoy this spot.

4.   When lying motionless, neatly coiled on the ground, an anaconda, with its elegant darkened spotting and flashing yellow belly seems beautiful and deceptively unthreatening.