Ideas change everything
WATCH
TED Talks
Browse the library of TED talks and speakers
Playlists
100+ collections of TED Talks, for curious minds
TED Series
Go deeper into fascinating topics with original video series from TED
TED-Ed videos
Watch, share and create lessons with TED-Ed
TEDx Talks
Talks from independently organized local events
TED Fluent
Watch TED Talks in your language
DISCOVER
Topics
Explore TED offerings by topic
Podcasts
Explore the TED Audio Collective
Ideas Blog
Our daily coverage of the world of ideas
Newsletters
Inspiration delivered straight to your inbox
TED Games
Innovative games that challenge you to think differently
ATTEND
Conferences
Take part in our events: TED, TEDGlobal and more
TEDx Events
Find and attend local, independently organized events
TED on Screen
Experience TED from home
TED Courses
Learn from TED speakers who expand on their world-changing ideas
PARTICIPATE
Nominate
Recommend speakers, TED Prize recipients, Fellows and more
Organize a local TEDx Event
Rules and resources to help you plan a local TEDx event
TED-Ed
Award-winning educational content and programs
Translate
Bring TED to the non-English speaking world
TED Fellows
Join or support innovators from around the globe
ABOUT
Our Organization
Our mission, history, team, and more
Conferences
TED Conferences, past, present, and future
Programs & Initiatives
Details about TED's world-changing initiatives
Partner with TED
Learn how you can partner with us
TED Blog
Updates from TED and highlights from our global community
Type to search
河狸为什么建水坝？
596,735 plays
|
格林尼斯·胡德 |
TED-Ed
• January 2023
Read transcript
在加拿大北部偏僻的丛林深处坐落着世界上最长的河狸水坝。它 850 米长，在卫星图像里也清晰可见。它极大地改变了该地区的面貌，创造出一片蓄水量约为七千万升的池塘。不论大小，水坝对环境均有巨大影响。那么河狸是如何建成这些伟大建筑的？格林尼斯·胡德带您详细了解。 主讲人：格林尼斯·胡德 导演：基根·桑希尔
TED is supported by ads and partners
