八点最热报 | 英国海狸早在400年前，就因为人类过度捕杀而绝种，直到2005年，一名庄园主人从德国带回3对海狸进行培植，海狸才再次出现在英国境内，并成为受英国法律保护的本土物种。而英国近年来，也开始将海狸投放到野外，希望借助牠们与生俱来的才能，重建当地生态系统…（主播：梁宝仪）
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00:00 Before watching the video, I remind you that there is more content on the Hotpot website.
00:04 Hai Li is fat, short and flat-tailed.
00:08 His cute appearance is a magic of fans.
00:10 But don't underestimate Hai Li's little will.
00:13 They are actually experts in building water dams.
00:15 They even have the reputation of nature engineers.
00:18 Hai Li will collect wood and dig a waterway to build a water dam.
00:22 In addition to effectively irrigating the land,
00:24 turning the dry land into a green wetland,
00:27 it can also slow down the flow of water and control flooding.
00:30 It can be said to be a great achievement in rebuilding the ecosystem.
00:34 In fact, 400 years ago,
00:36 British Hai Li was infected by human over-killing.
00:39 Until 2005, a farm owner brought back three pairs of Hai Li from Germany for cultivation.
00:45 Hai Li reappeared in the UK
00:48 and became a native species protected by British law.
00:52 In recent years, the UK has also started to put Hai Li in the wild
00:55 in the hope of helping them rebuild the local ecosystem with their talents.
01:00 Let's go to London, UK to see their cute figure.
01:03 Hai Li's family walks out of the cage and slides into the water to start a new life.
01:10 The small lake in the London city center has recently welcomed five new members
01:14 and attracted a large number of people to the site to join in the fun.
01:16 The founder of the British Wildlife Organization said
01:19 that putting Hai Li as a nature engineer into the ecosystem
01:23 will help reduce the local water disaster risk.
01:25 They are able to transform the landscape and they provide ecosystem services.
01:29 For example, they will help this landscape hold more water
01:32 and that will slow the flow and reduce flood risk locally.
01:36 After 400 years, Hai Li is once again seen in the lakes of London, UK.
01:41 The British Wildlife Organization said
01:43 that they hope the government will actively push for Hai Li to return to nature
01:47 and use Hai Li's power to improve the nature of the country.
01:52 [Music]
01:56 [Silence]