pair of dance flies display to each other on leaf - bristle animal part stock videos & royalty-free footage00:12
lobsters in a transparent tank of water - bristle animal part stock videos & royalty-free footage00:16
little girl who is holding a fish spine and touches the thorns - bristle animal part stock videos & royalty-free footage00:12
pair of dance flies display to each other on leaf - bristle animal part stock videos & royalty-free footage00:13
spider crab walks over urchins, norway - bristle animal part stock videos & royalty-free footage00:09
the medieval crusades - part 27 of 51. follows the fate of one noble family and their manor through the first crusade and reviews the most important later crusades and the influence of the crusades on life in europe - bristle animal part stock videos & royalty-free footage00:31
the sea - part 19 of 45. this film illustrates the interrelationships between living things in the sea, their dependence on each other and on the conditions of the marine environment. shows the diversity of free-swimming animals and illustrates basic conc - bristle animal part stock videos & royalty-free footage00:32
the sea - part 9 of 45. this film illustrates the interrelationships between living things in the sea, their dependence on each other and on the conditions of the marine environment. shows the diversity of free-swimming animals and illustrates basic conce - bristle animal part stock videos & royalty-free footage00:37
the housefly (3rd edition) - part 10 of 27. this highly complex and sometimes dangerous insect, capable of transmitting deadly disease, is examined in this film. viewers learn about the unique flight and feeding mechanisms of the housefly and discover its - bristle animal part stock videos & royalty-free footage00:35
the housefly (3rd edition) - part 8 of 27. this highly complex and sometimes dangerous insect, capable of transmitting deadly disease, is examined in this film. viewers learn about the unique flight and feeding mechanisms of the housefly and discover its - bristle animal part stock videos & royalty-free footage00:32
the housefly (3rd edition) - part 5 of 27. this highly complex and sometimes dangerous insect, capable of transmitting deadly disease, is examined in this film. viewers learn about the unique flight and feeding mechanisms of the housefly and discover its - bristle animal part stock videos & royalty-free footage00:30
the housefly (3rd edition) - part 4 of 27. this highly complex and sometimes dangerous insect, capable of transmitting deadly disease, is examined in this film. viewers learn about the unique flight and feeding mechanisms of the housefly and discover its - bristle animal part stock videos & royalty-free footage00:30
beach and sea animals (2nd edition) - part 15 of 20. explains the characteristics of invertebrate animals living near the beach. shows the body plan, adaptations, and interrelationships of the starfish, sea urchin, crab, octopus, sponge, lobster, anemone, - bristle animal part stock videos & royalty-free footage00:24
beach and sea animals (2nd edition) - part 10 of 20. explains the characteristics of invertebrate animals living near the beach. shows the body plan, adaptations, and interrelationships of the starfish, sea urchin, crab, octopus, sponge, lobster, anemone, - bristle animal part stock videos & royalty-free footage00:24
the monkey who would be king - part 2 of 18. when the mighty lion decides he's tired of being king, the monkey snatches his crown. through a clever plot, planned by the fox, the monkey learns it takes more than a crown to make a king - bristle animal part stock videos & royalty-free footage00:31
colonial children - part 10 of 19. authentically recreates puritan farm life in 17th century new england. shows how farmers work at home, in the fields; how they make their clothing, utensils, candles; and how their children receive religious education at - bristle animal part stock videos & royalty-free footage00:30
the medieval crusades - part 27 of 51. follows the fate of one noble family and their manor through the first crusade and reviews the most important later crusades and the influence of the crusades on life in europe - bristle animal part stock videos & royalty-free footage00:31
what is a fish? - part 21 of 39. illustrates the major types of fishes. shows the anatomy of a typical fish and demonstrates characteristic behavior patterns of various kinds of fishes. underwater photography is used to reveal behavior patterns such as c - bristle animal part stock videos & royalty-free footage00:33
what is a fish? - part 20 of 39. illustrates the major types of fishes. shows the anatomy of a typical fish and demonstrates characteristic behavior patterns of various kinds of fishes. underwater photography is used to reveal behavior patterns such as c - bristle animal part stock videos & royalty-free footage00:30
westward movement ii - settlement of the mississippi valley - part 21 of 28. shows the rapid transformation of the mississippi valley during the early 1800s and particular skills and crafts by dramatizing the lives of farmers, flat-boatmen, traders, and - bristle animal part stock videos & royalty-free footage00:35
segmentation--the annelid worms - part 16 of 28. describes the structure and functions of the segmented worm body systems, and shows that the segmented annelid worm body plan represents an important evolutionary development. the major classes of the phylu - bristle animal part stock videos & royalty-free footage00:33
segmentation--the annelid worms - part 6 of 28. describes the structure and functions of the segmented worm body systems, and shows that the segmented annelid worm body plan represents an important evolutionary development. the major classes of the phylum - bristle animal part stock videos & royalty-free footage00:30
how nature protects animals - part 10 of 14. a study of the defensive adaptations which make it possible for animal species to survive the many natural hazards that they encounter - bristle animal part stock videos & royalty-free footage00:33
how nature protects animals - part 9 of 14. a study of the defensive adaptations which make it possible for animal species to survive the many natural hazards that they encounter - bristle animal part stock videos & royalty-free footage00:31
where does life come from? - part 8 of 9. concepts of reproduction, growth, and life cycles are introduced through a study of life forms that develop from seeds and eggs. time-lapse and close-up photography reveal the miracle and continuity of life. a chi - bristle animal part stock videos & royalty-free footage00:29
where does life come from? - part 7 of 9. concepts of reproduction, growth, and life cycles are introduced through a study of life forms that develop from seeds and eggs. time-lapse and close-up photography reveal the miracle and continuity of life. a chi - bristle animal part stock videos & royalty-free footage00:30
slo mo horse looks at the camera while being in the stable - bristle animal part stock videos & royalty-free footage00:25
lobsters in a transparent tank of water - bristle animal part stock videos & royalty-free footage00:10
lobsters in a transparent tank of water - bristle animal part stock videos & royalty-free footage00:24
lobsters in a transparent tank of water - bristle animal part stock videos & royalty-free footage00:28
microorganism body part under microscope (bloodworm, glycera, annelid) - bristle animal part stock videos & royalty-free footage00:43
microorganism body part under microscope (bloodworm, glycera, annelid) - bristle animal part stock videos & royalty-free footage00:44
microorganism body part under microscope (bloodworm, glycera, annelid) - bristle animal part stock videos & royalty-free footage00:35
microorganism body part under microscope (bloodworm, glycera, annelid) - bristle animal part stock videos & royalty-free footage00:41
microorganism body part under microscope (bloodworm, glycera, annelid) - bristle animal part stock videos & royalty-free footage00:44
microorganism body part under microscope (bloodworm, glycera, annelid) - bristle animal part stock videos & royalty-free footage00:43
zebra lionfish (dendrochirus zebra) on reef, sulawesi, indonesia - bristle animal part stock videos & royalty-free footage00:12
zebra lionfish (dendrochirus zebra) on reef, sulawesi, indonesia - bristle animal part stock videos & royalty-free footage00:15
zebra lionfish (dendrochirus zebra) on reef, sulawesi, indonesia - bristle animal part stock videos & royalty-free footage00:11