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A Polar Bear eats harp and hooded seals, and will eat young walruses.
Since sperm contribute only a haploid nucleus to zygote, but zygote require all the things to develop into a young ones. Hence all other things like food,nucleus etc. Due to this,ova is larger than sperm & non-motile[to save energy for zygote]
A young polar bear is known as a cub.
A young polar bear is called a cub.
A young polar bear is referred to as a cub.
After about 2 years polar bears will leave their young to fend for themselves.
The mother polar bear does.
polar bear young looks very puny when thy are born
they develop their young by laying eggs and teaching them to get food
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Dolphins are mammals; their reproductive process is essentially the same as that of human beings, even if they happen to be in the water at the time. The zygote of a dolphin develops in the uterus of the mother dolphin.