"The fact that pandas need to conserve energy is clearly evident; all they seem to do is eat and sleep.
"Bursts of energy are avoided or reduced to an absolute minimum. Males are especially lazy and waste no effort on territorial defence or social interactions.
"They avoid energy sapping confrontations by scent marking, which maintains a physical distance between individuals.
"Anal glands are rubbed on scenting posts throughout their range. Males even urinate against trees while doing handstands; the higher the pee the more dominant the signal."