jump'ing bris'tletail

any of several thysanuran insects that live in dark, warm, moist places, as under leaves, bark, and dead tree trunks and along rocky seacoasts, and are active jumpers, making erratic leaps when disturbed. Also called machilid.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

jumping beanjumping gene
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