In all species studied except the horse, females assume a particular expression ("mating face") when permitting the male to mount.
The estrous mare (especially, or exclusively, young mares in the case of the plains zebra) adopts a typical posture with legs slightly apart, tail lifted, and, except in the horse, a characteristic facial expression (the "mating face" already mentioned).
After that procedure, and sealing the cavities mating faces with indium wire to ensure light tightness, the cavity demonstrated a (Q = 102mbox000), which is an order of magnitude improvement over the quality factor of the bare copper cavity.
(Though when I saw these pictures of gorillas captured on film for the first time mating face-to-face, I was absolutely and unequivocally blown away and couldn't help but believe they were actually feeling love...one of the most human of emotions).
Like humans, they also mate face to face, another rarity in the animal kingdom.
As bonobos sometimes mate face-to-face, "evolutionary biologist Marlene Zuk has suggested that the position of the clitoris in bonobos and some other primates has evolved to maximize stimulation during sexual intercourse".
The composition and design of mating faces in contacting mechanical seals are critical in preventing the media on one side of the face from successfully reaching the other.
Whether or not Stelae 1, 3, 5, and 6 were broken deliberately (and one suspects they were), attempts were later made to repair them, as witness the holes made for reinforcing dowels in the mating faces of fractures.
To avoid losses in potential gaps in any mating faces, we deposited ∼2 μm of Al on all Cu surfaces which are in contact with the Al cavity (the copper insert after evaporation of Al and other parts are shown in Figure 1(d)).
Before returning to Wembley, Adebayor and his Crystal Palace team-mates face Manchester United on Wednesday in what could be a dress rehearsal for the FA Cup final.
Now usually, politicians do the scrunched up 'Come Off It Mate' face when someone cleverer than them starts picking holes in their nefarious schemes (in fact George Osborne does it all the time, to everyone, regardless of the situation) and I suspect that's what Green was trying to do.
