Pandas are solitary in the wild and only meet up wits others when it’s time to breed, meaning they need clear lines of communication to find their partners.
They rely heavily on scent to communicate, and mark their territory by doing handstands. A panda will stand on its hands while leaning against a tree, urinate and rub its scent glands on the bark. The higher up the trunk the scent reaches, the higher the status of the panda. From scent marked areas, pandas can determine whether the other animal is sexually mature and whether it’s been left by a male or a female.
Female pandas are only able to get pregnant two to four days of the year, so males have a tricky job to find a willing mate. Female pandas emit high-pitched chirps to help males locate them, and chirp more frequently when they are approaching ovulation. These chirps let males know the precise timing of her stage of fertility, giving them the very best chances of having cubs.
Image from www.flickr.com/photos/gillpenney