Seal ultrasound (IMAGE)
Caption
To determine what environmental and physiological factors impact the seals’ ability to successfully produce pups, scientists can perform pregnancy ultrasound examinations. Timing of embryo implantation after a period of diapause is important for ensuring that seal pups are ultimately born when the environment is favorable. This shows an ultrasound of a Weddell seal embryo from McMurdo Sound, Antarctica.
Credit
Image credit: Michelle Shero, under permits: NMFS 17411.
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