When a species – like the slender-billed curlew bird that was last photographed in 1995 in Morocco by wildlife photographer Chris Gomersall – is not seen and is, therefore, thought to be extinct, chances are that having given up on its existence, no effort would be made to ensure its survival. This kind of Romeo error may, in fact, lead to its actual extinction, since even if a few of the birds remained, they and their habitats would not get protection as the species was thought to be existing no more. To declare a species to be extinct, it has to be proved beyond reasonable doubt that the last individual of that species is actually no more.
So, we can conclude that there was a causal connection between the deaths of Romeo and Juliet since Romeo presumed Juliet to be dead and, therefore, he kills himself. And Juliet, seeing that Romeo was no more, ended her life. In Nyaya philosophy, khyativada, the concept of error, is predicated on ignorance and/or false knowledge and true knowledge – errors of judgement that arise due to illusory perceptions.
