Dictionaries, Thesauruses, Pictures, and Press Releases
- Hardy, Claude
- Hardy, Godfrey Harold
- Hardy, SirAlisterClavering
- Hardy, William Bate
- Hardy–Weinberg equilibrium
- hare-lipped bat
- hares
- Haridatta I
- Haridatta II
- Harington, Charles Robert
- Harkins, William Draper
- Harkness, William
- Harlan, Richard
- harlequin chromosome
- harlequin chromosome
- harmonic fold
- Harnagian
- Harpactes
- Harpadontidae
- Harper, Robert Almer