According to this study, if 1% of the adult population dies or ends up being captured, the Tapanuli orangutan will become the first great ape to become extinct in modern times.
The hum of hummingbirds is produced by differences in air pressure during the flapping of their wings. Also, the overall shape of the wing adds nuance to the sound.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.