Some research has show that for small animals the effort to go up or along is the same.
QUOTE
US researchers studied primates climbing and walking on treadmills.
They say there was no difference in energy consumption for small primates
Professor Robin Crompton, of the Primate Evolution and Morphology group at the University of Liverpool, UK, said it had been observed in the wild that small animals such as the mouse lemur and dwarf bushbaby move in much the same manner on verticals as horizontals.
"For the first time, [the US researchers] show that for primates of up to 4kg or so, at least, the energetic efficiency of vertical motion increases very little with size, while previous work has shown that the efficiency of walking increases sharply," he said.
They say there was no difference in energy consumption for small primates
Professor Robin Crompton, of the Primate Evolution and Morphology group at the University of Liverpool, UK, said it had been observed in the wild that small animals such as the mouse lemur and dwarf bushbaby move in much the same manner on verticals as horizontals.
"For the first time, [the US researchers] show that for primates of up to 4kg or so, at least, the energetic efficiency of vertical motion increases very little with size, while previous work has shown that the efficiency of walking increases sharply," he said.
http://news.bbc.co.uk/2/hi/science/nature/7402853.stm
Why is this so ??
Is it because of static charge ? or buoyancy..... or ?
