Content Standard 6.2 Responses to external stimuli can result from interactions with the organism's own species and others, as well as environmental changes; these responses either can be innate (in-born) or learned. Broad patterns of behavior exhibited by animals have changed over time to ensure reproductive success. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Learned Behaviors QuickTime™ and a Sorenson Video decompressor are needed to see this picture. Intelligence - 19 min In-born Behaviors A period of winter inactivity QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Hibernate - 8 min What this guy does if his pond dries up in the summer. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Why do animals migrate? Animals migrate because of weather, food, or water. QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Migration - 7 min Birds use migration clues such as the sun & stars, mountains, and changes in the earth’s magnetic field. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Monarchs - 15 min QuickTime™ and a Sorenson Video decompressor are needed to see this picture. Animal Communication - 16 min Each animal species has certain behaviors that are related to mating. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Beetles - 3 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Squids - 2 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Amphibians - 4 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Ospreys - 5 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Rhinos - 3 min Quic kT ime™ and a Sorens on Video dec ompres sor are needed to see thi s pic ture. Nesting - 2 min altricial precocial Precocial birds lay many eggs and incubate them for a long time. The young are active as soon as they hatch. altricial precocial Altricial birds lay few eggs and incubate them for a short time. The young are helpless when they hatch. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Parenting - 8 min QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Predation refers to the relationship between a predator and its prey. Prey Predator Predator’s predator QuickTime™ and a Sorenson Video decompressor are needed to see this picture. Predation - 9 min QuickTime™ and a Cinepak decompressor are needed to see this picture. North American Cats - 10 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Polar Bears - 1 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Snakes - 2 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Forked Tongues - 7 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Bullfrogs - 2 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Birds of Prey - 5 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Eagles & DDT - 3 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Bioluminescence - 2 min Egg-layers Pouched Placental QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Mammals - 4 min Oviparous Viviparous Viviparous 2 species 350 species 95% of all mammals Vertebrate Embryos Brain Ear Veins Arteries Nose Future Vertebrae Mouth & Jaws Heart Stomach and Small Intestine Large Intestine General Embryo Anatomy Umbilical Cord Reptiles Birds Monotremes Platypus DANGER Poison Platypus and Echidna lay eggs and produce milk QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Platypus - 5 min QuickTime™ and a Sorenson Video 3 decompressor are needed to see this picture. Echidna - 5 min QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Although marsupials are viviparous, (give birth to live young), the young are born VERY prematurely. QuickTime™ and a Cinepak decompressor are needed to see this picture. Kangaroos - 10 min 95% of all Mammals The period of time between fertilization and birth Animal Gestation (Days) Opossum 12 Mouse 19 Rabbit 31 Eagle 44 Dog 61 Cat 63 Pig 112 Goat 151 Deer 201 Animal Gestation (Days) Grizzly Bear 220 Cow 284 Horse 330 Whale 360 Giraffe 425 Rhino 540 Asian Elephant 645 What is the gestation period of a human? 280 days