| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| On birds there are contour & down types of these | feathers | $100 | J | BIOLOGY | 1994-04-20 | #2228 | |
| One theory holds they developed from overlapping fringed extentions on the ends of reptiles' scales | feathers | $500 | J | BIOLOGY | 1991-05-28 | #1567 |