fighting rhinoceroses, thermography. the horns appear dark as they are made of keratin and not warmed by the blood supply. towards the end of the clip, the rhino on the right hits the other with its horn, which leaves a hot trace on the animals face.. - 溫血 個影片檔及 b 捲影像00:07犀牛
mother and baby gorilla (gorilla gorilla), thermography. the curious baby approaches the camera.. - 溫血 個影片檔及 b 捲影像00:15
what is a mammal? - part 15 of 24. demonstrates the basic structural and behavioral characteristics of mammals and describes their successful adaptation to a wide variety of ecological niches. compares reptilian and mammalian characteristics, such as reac - 溫血 個影片檔及 b 捲影像00:35心臟
what is a mammal? - part 14 of 24. demonstrates the basic structural and behavioral characteristics of mammals and describes their successful adaptation to a wide variety of ecological niches. compares reptilian and mammalian characteristics, such as reac - 溫血 個影片檔及 b 捲影像00:30
