The iceberg is jammed up against the northern coast of the island, forcing breeding penguins to cross it to reach the sea and food for their young.
Parker cites the long history of reproductive oppression that includes "forced breeding during slavery, sterilizations, and human experimentation on Puerto Rican women for the contraceptive pill.
The forced breeding experiment revealed a decrease in the cumulative number of pups, observed as a nonmonotonic dose response effect, and a decline in fertility and fecundity over time in female mice exposed perinatally to BPA.
All 42 of them were pried from her mouth, most likely to make certain she could not harm male dogs during forced breeding.
All of Georgia's teeth are gone: DogTown workers concluded after taking X-rays that the teeth were pulled by a veterinarian, probably to prevent Georgia from attacking the male dog during forced breeding.
These tigers were forced together in unnatural confinement, devoid of all that they need innately, biologically, physically, and environmentally... all in an effort at forced breeding.
We assessed fertility by the total number of litters per dam for each treatment group at the end of the 32-week period of forced breeding.
In the sketch, Jones contrasts her dating woes as a strong, tall, dark-skinned black woman – supposedly deemed unattractive by American pop cultural standards – with the practice of forced slave breeding in the pre-emancipation South.
The force is breeding its own canine cops, and the seven in A-Litter have been learning to track.
However, male-male sperm competition surely is an important force in breeding system evolution in closely related gonochoristic species: males of outcrossing species have much larger sperm [ 45].
In the present study, perinatal exposure to BPA resulted in a decline in reproductive capacity in a forced-breeding protocol.
