Wild Horses Mating
Michael Lustbader
Lion And Lioness Mating
Greg Dimijian
Praying Mantis Egg Mass
Perennou Nuridsany
Praying Mantises Mating
Perennou Nuridsany
Ovulation And Fertilization
Gwen Shockey
Somali Wild Ass #1
Mark Newman
Damselflies Mating
K.G. Vock/Okapia
Radiated Tortoises Or Sokatra
Greg Dimijian
Breeding Donkeys
Jean-Louis Klein & Marie-Luce Hubert
Cuviers Gazelles Mating
Toni Angermayer
Peccaries Mating #1
Gerald C. Kelley
Royal Terns #2
Paul J. Fusco
Mating Crayfish
John Mitchell
Bacteria, Sexual Reproduction
Omikron
Peregrines After Mating
Anthony Mercieca
Mating American Toads
Jeffrey Lepore
Sperm #5
David M. Phillips
Golden Toads Mating
Gregory G Dimijian MD
Rhinoceros Sperm Sem
David M. Phillips
Cannabis Pollen in Stigma
Ted Kinsman
Sperm Surrounding Egg, Sem
David M. Phillips / The Population Council
Ovum With Sperm
Oliver Meckes EYE OF SCIENCE
Ovum With Single Sperm
Meckes/ottawa
Ovum With Sperm
Meckes/ottawa
Ovum With Single Sperm #1
Meckes/ottawa
Ovum With Sperm #1
Meckes/ottawa
Fertilization #2
Gwen Shockey
Fertilization #3
Gwen Shockey
Fertilization #4
Gwen Shockey
Sperm And Egg
David M. Phillips
Sperm Embedded In Egg
David M. Phillips
Reproductive System
Bill Longcore
Winters Bark Drimys Winteri Pollen,sem
R E Litchfield
American Toad #5
Linda Freshwaters Arndt
Paramecium Micronucleatum, Conjugation
Patrick J. Lynch
Sperm And Egg #1
David M. Phillips
Leaf-litter Toads
Gregory G. Dimijian, M.D.
Walking Sticks Mating
John Mitchell
Northern Walking Sticks Mating
Harry Rogers
Paramecium During Conjugation #2
Michael Abbey
Fucus Sp. Algae, Lm
M. I. Walker
Fucus Sp. Algae, Lm #1
M. I. Walker
Fucus Sp. Algae, Lm #2
M. I. Walker
Fucus Sp. Algae, Lm #3
M. I. Walker
American Toad
Linda Freshwaters Arndt
American Toad #1
Linda Freshwaters Arndt
American Toad #2
Linda Freshwaters Arndt
American Toad #3
Linda Freshwaters Arndt
American Toads Mating
Linda Freshwaters Arndt
Chromosomes
Chris Bjornberg
Hemiptera Sperm Tem
David M. Phillips
Butterfly Sperm Tem
David M. Phillips
Hemiptera Sperm Tem #1
David M. Phillips
Coccid Insect Sperm Tem
David M. Phillips
Chinese Hamster Sperm Tem
David M. Phillips
Grasshopper Spermatid Tem
David M. Phillips
Hemiptera Sperm Tem #2
David M. Phillips
Fertilization #1
Gwen Shockey
Butterfly Sperm, Tem #1
David M. Phillips
Butterfly Sperm, Tem #2
David M. Phillips
Oleander Hawkmoths Mating
Fletcher & Baylis
Oleander Hawkmoths Mating #1
Fletcher & Baylis
Cycad Blue Butterflies
Fletcher & Baylis
Blue Swimming Crab With Mate
Andrew J. Martinez
Fucus Distichus, Lm
Biology Pics
Fucus Distichus, Lm #1
Biology Pics
Paramecium
Perennou Nuridsany
Spirogyra Conjugating
Gary Retherford
Chromosomes #1
Chris Bjornberg
Paramecium During Conjugation
Michael Abbey