求翻译：目前非洲马达加斯加岛西北地区仅剩400只犁头龟，其中成年龟仅为200只，如果目前为国际宠物贸易提供货源的捕猎、偷猎和走私等活动不被制止，这种龟有望在未来30年内全部灭亡。是什么意思？

Northwestern Madagascar in Africa today remaining 400 Ploughshares turtles, adult turtles which is only 200, if the current supply for the international pet trade, provided the hunting, poaching and smuggling activities are not stopped, this species is expected in the next 30 During the year all per

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Only 400 in Northwest Africa Madagascar ploughshare tortoise, adult turtles only 200 of them only, if current sources for the international pet trade activities such as hunting, poaching and smuggling is not stopped, this turtle is expected within the next 30 years all perish.

Northwestern Madagascar in Africa today remaining 400 Ploughshares turtles, adult turtles which is only 200, if the current supply for the international pet trade, provided the hunting, poaching and smuggling activities are not stopped, this species is expected in the next 30 During the year all per