8Q8A9929.jpg
Monitoring killer whales with AI

A research team in British Columbia, Canada, is using artificial intelligence to track orca populations and help shape strategies to protect their habitat.

03:57 - Source: CNN
Call to Earth 15 videos
8Q8A9929.jpg
Monitoring killer whales with AI
03:57
Now playing
- Source: CNN
still_21858225_223429.064_still.jpeg
Restoring the 'River of Grass'
04:00
Now playing
- Source: CNN
CTESANDFISH.jpg
Saving South Africa's endangered sandfish
04:02
Now playing
- Source: CNN
still_21664374_203172.834_still.jpg
Meet the blind conservationist fighting to save nature’s soundscapes
03:38
Now playing
- Source: CNN
<p>Iracambi, an environmental organization, is working with the indigenous Puri people to restore biodiversity in the Atlantic Forest in southeastern Brazil, an area experiencing higher rates of deforestation than the Amazon.</p>
Guardians of the Forest Seeds: Restoring Brazil's Atlantic Forest
04:02
Now playing
- Source: CNN
RODRIGO BATS JPEG.jpg
Protecting Mexico's bats
03:59
Now playing
- Source: CNN
nigerian chimp.jpg
Protecting Nigeria's endangered primates
03:51
Now playing
- Source: CNN
CTE Stills CT 06.jpeg
Call to Earth: Searching for super coral
23:00
Now playing
- Source: CNN
Lanyon Quoit MW light Pollution Edited-1.jpg
Photographer captures the Milky Way in one of the UK's darkest places
03:31
Now playing
- Source: CNN
<p>A pioneering project in southeastern England has reintroduced the European bison to help restore its ancient woodlands.</p>
A long-lost woolly giant returns to the UK
03:57
Now playing
- Source: CNN
underwater_sea_turtle.jpg
Saving one of the oldest living creatures on Earth
03:49
Now playing
- Source: CNN
SIMONS TOWN, SOUTH AFRICA - JUNE 29: African penguins gather at the end of the afternoon at Boulders Beach June 29,2010 in Simon's Town, South Africa. The vulnerable species live in a penguin colony in False Bay that is part of Table Mountain National Park. Since breeding two pairs in 1982, the penguin colony has grown over the years to over 3,000. Tourists in country for the World Cup have brought double the usual numbers of people visiting the famous penguin breeding ground. (Photo by Paula Bronstein/Getty Images)
The race to save the African penguin
03:56
Now playing
- Source: CNN
saiga_clean.jpg
Saving saiga in Kazakhstan's 'Golden Steppe'
03:55
Now playing
- Source: CNN
CTE_PKG_1_V5 CLEAN_00031723.JPG
Call to Earth: Kings of the forest
22:55
Now playing
- Source: CNN
<p>During the commercial whaling era of the 19th and early 20th centuries, humpback whale populations were reduced by an estimated 95%. An international ban on the practice has since helped the species rebound. Photographer Chris Fallows takes CNN out to sea for a firsthand look at the iconic species.</p>
The comeback of the humpbacks
04:00
Now playing
- Source: CNN