luigi galvani and his wife lucia demonstrating contractions of the muscles of the leg of a frog caused by electrical stimulation. - frog anatomy stock videos & royalty-free footage00:20Luigi Galvani and his wife Lucia demonstrating contractions of the muscles of the leg of a frog caused by electrical stimulation.History, 18th Century, Frog
reptile woman anatomy - frog anatomy stock videos & royalty-free footage00:10Reptile Woman AnatomyHuman Skeleton, Animal Skeleton, Domestic Cat
a frog hides in dirt then strikes at a large spider with its sticky tongue. - frog anatomy stock videos & royalty-free footage00:26A frog hides in dirt then strikes at a large spider with its sticky tongue.Frog
frog blood smear under microscopy - frog anatomy stock videos & royalty-free footage00:12frog blood smear under microscopyFrog, Blood, Microscope
schoolboy preparing to dissecting a frog in a biology lab - frog anatomy stock videos & royalty-free footage00:17Schoolboy preparing to dissecting a frog in a biology lab
schoolboy and schoolgirl preparing to dissecting a frog in a biology lab - frog anatomy stock videos & royalty-free footage00:13Schoolboy and schoolgirl preparing to dissecting a frog in a biology lab
a monkey frog haltingly ascends a branch. - frog anatomy stock videos & royalty-free footage00:38A monkey frog haltingly ascends a branch.Frog, Climbing
a deformed frog moves its mouth. - frog anatomy stock videos & royalty-free footage00:10A deformed frog moves its mouth.Frog, Research
tadpole gill blood circulation: common frog (rana temporaria) tadpole collected from pond near newcastle emlyn, uk. - frog anatomy stock videos & royalty-free footage00:59Tadpole gill blood circulation: Common Frog (Rana temporaria) tadpole collected from pond near Newcastle Emlyn, UK.Blood, Tadpole
frog eggs monocyte under light microscopy - frog anatomy stock videos & royalty-free footage00:10Frog eggs monocyte under light microscopyBiological Cell, Frog
the visible heart of a glass frog beats slowly. - frog anatomy stock videos & royalty-free footage00:20The visible heart of a glass frog beats slowly.
ethnicity school student prepairing to dissecting a frog in a biology lab. - frog anatomy stock videos & royalty-free footage00:13Ethnicity school student prepairing to dissecting a frog in a biology lab.
1972 montage teenage students in biology class dissecting frogs and using microscopes, arlington, virginia, usa / audio - frog anatomy stock videos & royalty-free footage00:401972 MONTAGE Teenage students in biology class dissecting frogs and using microscopes, Arlington, Virginia, USA / AUDIOScience, Frog, Classroom
view of a frog in a laboratory - frog anatomy stock videos & royalty-free footage00:02View of a Frog in a laboratoryFrog
science teacher using knife to dissect frogs to study the internal organs of frogs. - frog anatomy stock videos & royalty-free footage00:26Science teacher using knife to dissect frogs to study the internal organs of frogs.Dissection, Frog, Scrutiny
crowded long banquet table surrounded by mannequins topped with animal heads / artist salvador dali in anatomy costume and seated wife gala, in... - frog anatomy stock videos & royalty-free footage00:49Salvador Dali's bad dream costume party at the Hotel Del MonteArtist, Frog
close-up of the larva (tadpole) of a glass frog in its egg, 14 days after it was laid. - frog anatomy stock videos & royalty-free footage00:19Close-up of the larva (tadpole) of a glass frog in its egg, 14 days after it was laid.Glass Frog, Frog
ethnicity school student prepairing to dissecting a frog in a biology lab. - frog anatomy stock videos & royalty-free footage00:11Ethnicity school student prepairing to dissecting a frog in a biology lab.Frog
schoolboy and schoolgirl prepairing to dissecting a frog in a biology lab. - frog anatomy stock videos & royalty-free footage00:21Schoolboy and schoolgirl prepairing to dissecting a frog in a biology lab.
schoolboy and schoolgirl prepairing to dissecting a frog in a biology lab. - frog anatomy stock videos & royalty-free footage00:20Schoolboy and schoolgirl prepairing to dissecting a frog in a biology lab.
frog eggs monocyte under light microscopy - frog anatomy stock videos & royalty-free footage00:14Frog eggs monocyte under light microscopy
frog eggs monocyte under light microscopy - frog anatomy stock videos & royalty-free footage00:12Frog eggs monocyte under light microscopy
frog eggs monocyte under light microscopy - frog anatomy stock videos & royalty-free footage00:11Frog eggs monocyte under light microscopy
frog blood smear under microscopy - frog anatomy stock videos & royalty-free footage00:13frog blood smear under microscopyMicroscope, Frog, Research
the internal organs of a glass frog are visible through its abdomen. - frog anatomy stock videos & royalty-free footage00:29The internal organs of a glass frog are visible through its abdomen.
the internal organs of a glass frog are visible through its abdomen. - frog anatomy stock videos & royalty-free footage00:39The internal organs of a glass frog are visible through its abdomen.
a red-eyed tree frog sits near a blob of its eggs. - frog anatomy stock videos & royalty-free footage00:30A red-eyed tree frog sits near a blob of its eggs.
a red-eyed frog leaps away. - frog anatomy stock videos & royalty-free footage00:11A red-eyed frog leaps away.
a red-eyed frog sits on a leaf and stares. - frog anatomy stock videos & royalty-free footage00:20A red-eyed frog sits on a leaf and stares.
a red-eyed frog crawls along a leaf. - frog anatomy stock videos & royalty-free footage00:20A red-eyed frog crawls along a leaf.
a red-eyed tree frog blinks in slow motion. - frog anatomy stock videos & royalty-free footage00:17A red-eyed tree frog blinks in slow motion.
a red-eyed tree frog stares, blinks, and hops away. - frog anatomy stock videos & royalty-free footage00:12A red-eyed tree frog stares, blinks, and hops away.Costa Rica
a red-eyed frog breathes. - frog anatomy stock videos & royalty-free footage00:11A red-eyed frog breathes.
a dirt-covered frog strikes at a small snake with its sticky tongue but the snake avoids it. - frog anatomy stock videos & royalty-free footage00:23A dirt-covered frog strikes at a small snake with its sticky tongue but the snake avoids it.Snake
a green frog features a red bulging eye. - frog anatomy stock videos & royalty-free footage00:13A green frog features a red bulging eye.
tailed mutant woman anatomy - frog anatomy stock videos & royalty-free footage00:20Tailed Mutant Woman AnatomyMRI Scan, Medical X-ray, Domestic Cat
tadpoles of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:34Tadpoles of Common Frog (Rana temporaria) with gills
tadpole of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:21Tadpole of Common Frog (Rana temporaria) with gillsTadpole
tadpoles of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:30Tadpoles of Common Frog (Rana temporaria) with gills
tadpoles of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:28Tadpoles of Common Frog (Rana temporaria) with gills
tadpoles of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:35Tadpoles of Common Frog (Rana temporaria) with gills
tadpoles of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:21Tadpoles of Common Frog (Rana temporaria) with gills
tadpole of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:20Tadpole of Common Frog (Rana temporaria) with gills
muscle: electrical activity of contraction - part 4 of 15. the regulation of single muscle fiber contractions is achieved through a relationship that exists between muscle fibers and nerve impulses. using highly specialized equipment, dr. martin morad dem - frog anatomy stock videos & royalty-free footage00:35Muscle: Electrical Activity of Contraction - part 4 of 15. The regulation of single muscle fiber contractions is achieved through a relationship that exists between muscle fibers and nerve impulses. Using highly specialized equipment, Dr. Martin Morad demLaboratory, Scientist, Archival
muscle: electrical activity of contraction - part 2 of 15. the regulation of single muscle fiber contractions is achieved through a relationship that exists between muscle fibers and nerve impulses. using highly specialized equipment, dr. martin morad dem - frog anatomy stock videos & royalty-free footage00:32Muscle: Electrical Activity of Contraction - part 2 of 15. The regulation of single muscle fiber contractions is achieved through a relationship that exists between muscle fibers and nerve impulses. Using highly specialized equipment, Dr. Martin Morad demDissection, Human Nervous System
muscle: electrical activity of contraction - part 1 of 15. the regulation of single muscle fiber contractions is achieved through a relationship that exists between muscle fibers and nerve impulses. using highly specialized equipment, dr. martin morad dem - frog anatomy stock videos & royalty-free footage00:28Muscle: Electrical Activity of Contraction - part 1 of 15. The regulation of single muscle fiber contractions is achieved through a relationship that exists between muscle fibers and nerve impulses. Using highly specialized equipment, Dr. Martin Morad demScience, Performance, Gymnastics
biology: exploring the living world - part 4 of 18. examines the three lines of defense against infection - the skin and mucous membrane, the lymphatic system, and the circulatory system including liver and spleen. explains how the body becomes immune to - frog anatomy stock videos & royalty-free footage00:34Biology: Exploring the Living World - part 4 of 18. Examines the three lines of defense against infection - the skin and mucous membrane, the lymphatic system, and the circulatory system including liver and spleen. Explains how the body becomes immune toBlack And White, Nose, Mucus
looking at reptiles - part 10 of 20. differentiates reptiles from other creeping forms through body structure, respiratory system, and manner of egg laying. emphasizing adaptation, the film brings out the fact that reptiles were the first vertebrates to - frog anatomy stock videos & royalty-free footage00:26Looking at Reptiles - part 10 of 20. Differentiates reptiles from other creeping forms through body structure, respiratory system, and manner of egg laying. Emphasizing adaptation, the film brings out the fact that reptiles were the first vertebrates to
looking at reptiles - part 4 of 20. differentiates reptiles from other creeping forms through body structure, respiratory system, and manner of egg laying. emphasizing adaptation, the film brings out the fact that reptiles were the first vertebrates to a - frog anatomy stock videos & royalty-free footage00:28Looking at Reptiles - part 4 of 20. Differentiates reptiles from other creeping forms through body structure, respiratory system, and manner of egg laying. Emphasizing adaptation, the film brings out the fact that reptiles were the first vertebrates to aLizard, Snake
close-up of the larva (tadpole) of a glass frog hatching from its egg, 19 days after it was laid. - frog anatomy stock videos & royalty-free footage00:16Close-up of the larva (tadpole) of a glass frog hatching from its egg, 19 days after it was laid.
close-up of the larva (tadpole) of a glass frog hatching from its egg, 19 days after it was laid. - frog anatomy stock videos & royalty-free footage00:14Close-up of the larva (tadpole) of a glass frog hatching from its egg, 19 days after it was laid.
close-up of two glass frog larvae (tadpoles) developing in their eggs, seven days after being laid. - frog anatomy stock videos & royalty-free footage00:13Close-up of two glass frog larvae (tadpoles) developing in their eggs, seven days after being laid.Heart - Internal Organ, Larva
close-up of a glass frog larva (tadpole) developing in its egg, seven days after being laid. - frog anatomy stock videos & royalty-free footage00:09Close-up of a glass frog larva (tadpole) developing in its egg, seven days after being laid.Heart - Internal Organ
frog fish with fins adapted as 'hands' - hand, southern visayas, philippines - frog anatomy stock videos & royalty-free footage00:14Frog Fish with fins adapted as 'hands' - hand, Southern Visayas, Philippines
tadpole of common frog (rana temporaria) with gills - frog anatomy stock videos & royalty-free footage00:13Tadpole of Common Frog (Rana temporaria) with gills
