PHOTO VIA WIKIPEDIA, CC BY-SA
The picture
Whales are ecosystem engineers. Their nutrient-rich waste fertilises tiny phytoplankton that produce oxygen and capture carbon - a process sometimes called the “whale pump.” After the global whaling ban, several populations are recovering, one of conservation’s clearest wins.
The science
Order Cetacea. A blue whale is the largest animal ever known to have lived - larger than any dinosaur.
In numbers
Worth repeating at dinner
A single great whale can store around 33 tonnes of CO₂ over its lifetime.
- IUCN
Humpbacks sing complex songs that evolve and spread between groups.
- WCS
Whale waste fertilises the phytoplankton that produce much of our oxygen.
- IUCN
What they face
Collisions with vessels injure and kill whales along busy routes.
NOAA
Discarded and active fishing gear traps whales.
NOAA
Shipping and sonar disrupt communication and navigation.
IUCN
What is already working
Slowing ships in whale zones cuts fatal strikes.
Trained responders free whales caught in gear.
Reasons for hope
Some South Atlantic humpback populations have recovered to near pre-whaling numbers.
Meet them
Small actions that reach them
People doing the big work
Hopeling is also a pocket companion: one fact, one small act a day. Open the app