Leatherback turtles usually mate every other year .

棱皮龟通常是隔年才交配一次。

This magnificent creature is the giant leatherback turtle .

这巨大的动物是巨形革龟。

In the pacific , the number of leatherback turtles has plummeted in the last three decades .

在太平洋，菱皮龟的数量在过去三十年呈直线下降的情况。

Italian leatherback and kandy beard .

意大利的棱皮龟和康提交配。

In 1980 the worldwide leatherback population was estimated at around 115000 .

1980年，世界范围内棱皮海龟总数约为115000只。