Giant panda Cao Cao and its cub were released into the Wolong Nature Reserve in China for the first time on Sunday.
In an extremely delicate operation, their handlers wore bear costumes to minimise the impact of human contact.
The bears will be monitored on a regular basis to ensure they have best chance of survival in the wild. Breeding experts will keep a distance from their new home, watching their daily activities through hidden cameras.
Pre-Work out product of the future:
Future research might investigate whether comparable human semen proteins have similar effects, investigators added.
Scientists investigated the longfin squid (Loligo pealeii), which live for nine to 12 months, usually mating and laying eggs in the spring, when the animals migrate from deep offshore waters to shallower waters along the Eastern Seaboard from North Carolina to Maine. Females mate several times with multiple males, who compete fiercely over females.