Speaking to Richard Madeley on BBC Radio Two, he said the predator could cause upset through its natural behaviour.
In 2006, a pack of six Mackenzie River wolves - a North American wolf - were put down because they were "not portraying their natural behaviour".
Though the genes in question have yet to be identified, this result suggests they are too abundant to be there by chance in other words they are being kept in the population by natural selection because psychopathic behaviour confers a selective advantage.
Conocimientos del pueblo Mayangna sobre la convivencia del hombre y la naturaleza: peces y tortugas, demonstrates the depth and breadth of local knowledge of the natural milieu, including behaviour, habitat, reproduction and migration patterns, and the introduction of new and invasive species.
Critics may complain that viewing all behaviour through a prism of natural selection is reductive.
This observation enabled the scientists to get a rare insight into the behaviour of the fish in its natural environment.
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One compound synthesised by Dr Blackwell's team is more effective than the natural signalling chemical at turning on this group behaviour and works even when there are not enough bacteria around to induce the process naturally.
And so, late last night, the professor of pandas made a call: at last Tian Tian was hormonally ready but her behaviour was "not conducive" to natural mating.
"Although anti-social behaviour is not acceptable, it is only natural that children will take the opportunity presented by the wintry weather to enjoy playing in the snow, " he said.
Charles Darwin, by contrast, found a lead for his theory of natural selection in the whimsical hobby of pigeon fancying, where the birds showed an enormous variety of form and behaviour.
More intriguingly, an experiment carried out in 2004 by Brian Hare, then at Harvard and now of Duke University in North Carolina, suggested that natural selection in the context of domestication had boosted dogs' intelligence, too, by allowing them to understand human behaviour in a way that their ancestors, wolves, cannot.
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