I just watched an episode of QI (for American friends it used to be hosted by Stephen Fry, now Sandi Toksvig, and is about general ignorance) and one item featured a raspberry bush. I really dislike when people who believe evolution anthropomorphise non-human things by way of explanation. In this item the question was asked - if a raspberry bush needs to disperse its seeds by encouraging animals to eat them, why does it have prickles?
Answer - it wants a particular sort of animal that isnt put off by a prickle. Birds and small rodents arent bothered by the prickles or thorns, they can dodge round them, and they are the ones that will take the seeds long distances, and that is âwhat the bush wantsâ. But a bear or other large mammal in contrast will digest the seeds and whatâs left will be dumped in a single pile of manure, and so dont disperse the seeds. Or as one comedian said, they make them into jam and sell themâŚ
Firstly I hated when she said âitâs what the bush wantsâ as if the bush has a brain and thinks. Ive heard similar language from professional evolutionists so I suppose itâs not surprising tv hosts use it too. But I assume all would agree itâs nonsense language?
But secondly, could someone well grounded in evolution please explain the mechanisms that are behind prickles being present in for example raspberry bushes, which do seem to put off certain animals from eating them, whilst encouraging others to eat them, for example birds, if indeed that is the case.
When I hear such explanations, it is hard not to think of âdesignâ though of course such tv hosts are oblivious to that as theyre atheists. Is the spreading of their seed over longer distances on purpose, or just a coincidence, given a fruit plant does not âthinkâ and isnt aware of where its seeds end up.