Cougar, simple deduction innit. Rats and giraffes do not have a gall bladder and are unable to post bollix on the web. Humans do have gall bladders and are clearly capable of posting bollix on line, so the purpose of the gall bladder must be related to that.
The reflectivity of a celestial body, (IE a planet or moon) is known as it’s ‘albedo’. The albedo of Earth (which incidentally has a density of approx 6,600 million million million tons) is 0.39.
A country is “doubly landlocked” or “double-landlocked” when it is surrounded entirely by one or more landlocked countries (requiring the crossing of at least two national borders to reach a coastline).