The Astonishing Invisible Spy Camera Films Black Bears!
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AnimalsTranscript
00:00 [water bubbling]
00:04 [birds chirping]
00:06 [cow moos]
00:08 [birds chirping]
00:10 [water flowing]
00:13 This is MagiCam, a camera that literally disappears before your eyes.
00:19 [water flowing]
00:21 As with the best of vanishing tricks, it's all done by mirrors.
00:26 [water flowing]
00:32 This new device is being field tested on the world's commonest bear, the American black bear.
00:41 The results look promising.
00:44 [water flowing]
00:48 Eight-month-old cubs only come to ground when the coast is clear.
00:53 [birds chirping]
00:56 [cow moos]
00:58 [birds chirping]
01:07 Even close up, their suspicion isn't aroused.
01:12 Adults too remain blissfully unaware.
01:16 [cow moos]
01:17 And no mother could relax if she had any suspicions.
01:22 [birds chirping]
01:27 One reason for their success is the large number of cubs they produce.
01:32 Some have six.
01:34 [birds chirping]
01:44 The cubs also grow quickly and leave her after just 17 months.
01:50 She soon has another brood.
01:53 [cubs growling]
01:57 [birds chirping]
02:08 Black bears are also more sociable than other bears, and families can coexist in relatively small areas.
02:16 [cubs growling]
02:24 Small and adaptable, they soon exploit new opportunities.
02:29 [water flowing]
02:34 They also have few natural predators.
02:38 [birds chirping]
02:43 So the mother can leave her cubs alone when she goes off in search of food.
02:48 [birds chirping]
02:59 Squirrels are hard at work the effort, something the cubs have yet to learn.
03:04 [birds chirping]
03:07 [cubs growling]
03:10 [cubs growling]
03:14 [cubs growling]