Sheldrakes concept of morphic resonance is kind of an interesting concept especially now that weve discovered more and more about epigenetic factors influencing a whole sort of responses in organisms (evolutionary changes not the least of them ).
He was initially villified and still has the ENglish all bent out of shape because ENgland is so damn screwed up in its several "schools of scientific thought"
In the US we have it much simpler, Most all of science is lined up on one side and the non science advocates align themselves in their snactuaries.
Hes not so "out there:" any more because he is proposeing a synthesis that considers how extra-corporeal "Stuff" is trannsg=ferred between and among speices. EPigenetics,genetic "memory" natural selection, all seem to have something in relation to some of Sheldrakes hypotheses.
Its all still quite speculative and there needs to be some definite research into how mechanisms can be documented .
Im at least open minded to his hypotheses. However, It must be noted that, like any other hypothesis, it must be gently adhered to.