decided to find out.]]> branches.]]> checked whether they liked high or low branches.]]> collars on 37 koalas in Australia.]]> discovered that koalas behaved differently on warm days and hot days.]]> fur is thick.]]> Koalas don't hug trees because they love them.]]> nearby.]]> shelter and water can be hard to find.]]> tracked the koalas during winter and summer.]]>