个人资料图片
English
  • 全部
  • 搜索
  • 图片
  • 视频
  • 地图
  • 资讯
  • 更多
    • 购物
    • 航班
    • 旅游
  • 笔记本
报告不当内容
请选择下列任一选项。
  • 时长
    全部短(小于 5 分钟)中(5-20 分钟)长(大于 20 分钟)
  • 日期
    全部过去 24 小时过去一周过去一个月去年
  • 清晰度
    全部低于 360p360p 或更高480p 或更高720p 或更高1080p 或更高
  • 源
    全部
    Dailymotion
    Vimeo
    Metacafe
    Hulu
    VEVO
    Myspace
    MTV
    CBS
    Fox
    CNN
    MSN
  • 价格
    全部免费付费
  • 清除筛选条件
  • 安全搜索:
  • 中等
    严格中等（默认）关闭
筛选器
Extinction: The Facts in 6 minutes
5:52
BBC
Extinction: The Facts in 6 minutes
A million species are at risk of extinction. David Attenborough explores the consequences.
2020年9月14日
短视频
Climate Change: Why are thousands of species facing extinction? - BBC News
3:11
已浏览 8.3万 次
Climate Change: Why are thousands of species facing extinction? - BBC News
BBC News
What is extinction? - KS2 - The Regenerators - BBC Bitesize
What is extinction? - KS2 - The Regenerators - BBC Bitesize
Extinction Causes
Extinction of Species | Evolution | Biology | FuseSchool
2:53
Extinction of Species | Evolution | Biology | FuseSchool
YouTubeFuseSchool - Global Educatio
已浏览 23.4万 次2017年3月27日
Earth's Mass Extinction Events: The Big 5
8:40
Earth's Mass Extinction Events: The Big 5
YouTubeEarth Science Classroom
已浏览 9811 次2023年9月24日
Causes of Species Extinction | Animation
3:53
Causes of Species Extinction | Animation
YouTubeEarthPen
已浏览 2913 次2024年7月13日
热门视频
The Biggest Mass Extinction Ever Recorded | How the Earth Was Made
19:10
The Biggest Mass Extinction Ever Recorded | How the Earth Was Made
YouTubeHISTORY
已浏览 9.7万 次3 个月之前
Earth currently experiencing a sixth mass extinction, according to scientists | 60 Minutes
13:17
Earth currently experiencing a sixth mass extinction, according to scientists | 60 Minutes
YouTube60 Minutes
已浏览 556.7万 次2023年1月2日
The First Mass Extinction as Explained by Lindsay Nikole
9:06
The First Mass Extinction as Explained by Lindsay Nikole
YouTubeColossal Biosciences
已浏览 4.6万 次7 个月之前
Extinction Events
Paleontologist Answers Extinction Questions | Tech Support | WIRED
21:33
Paleontologist Answers Extinction Questions | Tech Support | WIRED
YouTubeWIRED
已浏览 341.6万 次9 个月之前
What Exactly Killed The Dinosaurs? | Earth | BBC Earth Science
3:55
What Exactly Killed The Dinosaurs? | Earth | BBC Earth Science
YouTubeBBC Earth Science
已浏览 128.9万 次2023年8月14日
How Many Times Has The Earth Experienced An Extinction Event? | The Next Great Event | Spark
47:56
How Many Times Has The Earth Experienced An Extinction Event? | The Next Great Event | Spark
YouTubeSpark
已浏览 302.7万 次2022年4月13日
The Biggest Mass Extinction Ever Recorded | How the Earth Was Made
19:10
The Biggest Mass Extinction Ever Recorded | How the Earth Was Made
已浏览 9.7万 次3 个月之前
YouTubeHISTORY
Earth currently experiencing a sixth mass extinction, according to scientists | 60 Minutes
13:17
在视频中查找 00:01Introduction to Mass Extinction Crisis
Earth currently experiencing a sixth mass extinction, according to scie…
已浏览 556.7万 次2023年1月2日
YouTube60 Minutes
The First Mass Extinction as Explained by Lindsay Nikole
9:06
The First Mass Extinction as Explained by Lindsay Nikole
已浏览 4.6万 次7 个月之前
YouTubeColossal Biosciences
Climate Change: Why are thousands of species facing extinction? - BBC News
3:11
在视频中查找 00:01Introduction to Extinct Species
Climate Change: Why are thousands of species facing extinction? - BB…
已浏览 8.3万 次2019年6月17日
YouTubeBBC News
What is extinction? - KS2 - The Regenerators - BBC Bitesize
What is extinction? - KS2 - The Regenerators - BBC Bitesize
2021年12月7日
bbc.co.uk
SPECIES EXTINCTION | Causes of Species Extinction (Grade 9)
10:31
SPECIES EXTINCTION | Causes of Species Extinction (Grade 9)
已浏览 2.8万 次2020年11月11日
YouTubeLearning Science Channel
How Dinosaur Extinction Gave Us Fruit
12:45
How Dinosaur Extinction Gave Us Fruit
已浏览 57.5万 次3 个月之前
YouTubePBS Eons
5:00
What Earth in 2050 could look like - Shannon Odell
已浏览 120.8万 次2024年3月28日
YouTubeTED-Ed
18:26
THE JURASSIC GAMES: EXTINCTION is PEAK
已浏览 2.3万 次3 个月之前
YouTubeRickRaptor105
观看更多视频
静态缩略图占位符
更多类似内容
反馈
  • 隐私
  • 条款