Add to this depredation their naturally low birth rates, slowness in maturing, and long gestation periods coupled with the pollution of their nursery grounds, and the result is a rapidly declining shark population.
وهذا عدد كبير جدا ،‏ بحيث انه لو اردنا وضعها الواحدة تلو الاخرى لتمكّنّا من تطويق الكرة الارضية خمس مرات » .‏