Skip to main content
Skip to search
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
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
SIGN IN
MEMBERSHIP
Type to search
TED is supported by ads and partners
00:00
Visit advertiser
為什麼河狸要蓋水壩？
532,070 views
|
葛萊妮絲‧胡德 |
TED-Ed
• January 2023
Read transcript
北加拿大的偏遠森林中，座落著世界上最長的河狸水壩。這個全長達850公尺的水壩，大到可被衛星影像清楚拍下，也為當地環境帶來巨大改變，打造出了一個七千萬公升的湖泊。但是，不管河狸的水壩有多大，都能對環境帶來許多影響。所以，河狸到底怎麼蓋出這些神奇的水壩？葛萊妮絲‧胡德帶我們深入了解河狸的建築才華。 課程：葛萊妮絲‧胡德；導演：基根‧桑希爾
science
engineering
education
animals
biology
biomimicry
biodiversity
TED-Ed
animation
TED is supported by ads and partners
