Double transgenic mouse embryo, 18.5 days
Zebrafish embryo midbrain and diencephalon
Testudinella patina (a rotifer)
Marine diatoms attached to Polysiphonia (red algae)
Sea water with mixed zooplankton and needle eye
Hydrophilidae sp. (water scavenger beetle) larva
Xenopus (frog) embryos
Erpobdella octoculata (fresh water leech)
Papaver subpiriforme (corn poppies) flower bud
Antique microscope slide featuring thin section of diseased ivory
Opening stamen of Mirabilis jalapa (flower)
Ophryotrocha diadema (marine worm) embryo, showing nervous
Coiled radula of Patella vulgaris (mollusk)
Cedrus atlantica (cedar) leaf crosscut
Trematode sp. (parasitic worm)
Mimetidae sp. (spider) egg case
Kaleidofly of a Halloween Pennant (dragonfly)
Amisega floridensis (parasitic wasp)
Epilobium parviflorum (small-flowered willowherb) seeds
Clione sp. (planktonic mollusk) larva