article_snippet: Scroll down for video .
article_snippet: Dave Clarke, Head of Invertebrates at ZSL London told MailOnline:
article_snippet: This suggests that animals living nearer the arctic circle may react more strongly .
article_snippet: For example, sheep (stock image) may find a place to sleep tomorrow .
article_snippet: In the study, the animals increased the length of this ‘non-stop running sessions’.
article_snippet: It is guesswork as to how some birds may react tomorrow.
article_snippet: The organisation said The organisation had been planning so-called