David presents the progress into IQ research concerning some highly intelligent, long under-estimated species. First the orangutan, a forest primate from the Indonesian jungles, originally mistaken for a violent degenerated human, hen ...See moreDavid presents the progress into IQ research concerning some highly intelligent, long under-estimated species. First the orangutan, a forest primate from the Indonesian jungles, originally mistaken for a violent degenerated human, hen believed never to use its learning ability, shown in captivity, in the wild, as research on Borneo indicated, but now found enterprising in more demanding Sumatran marshes. Next the crow family, which proves that predatory birds can be as observant and agile problem-solvers as any primate. Written by
KGF Vissers
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