A possible new
solution to a 163-year-old biology puzzle - why animals grow bigger in cold climates - may have been found, according to researchers who say ecological factors can now be added to
physiological ones.
The results were published
in The
American Naturalist and they say it offers new
insight into 'Bergmann’s rule', an ecogeographic notion that correlates latitude with body mass in animals - animals grow larger at high, cold latitudes than their counterparts closer to