Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS

Episodes
Dangerous Catch Dirty Secrets Additional Episodes
border
TV Schedules About the Project For Educators Feedback border
border
National Geographic's Strange Days on Planet Earth
Get Involved
Little changes... with big results. border
border
Strange Days on Planet Earth
border

Please note that links marked with Off-site Link are off-site links and will open in a new browser window.

PBS's Terms of Use.

Glossary

K

karst systems: limestone cave landscapes shaped by water’s erosive actions over many years.

kilter: in working order.

krill: shrimp-like crustaceans (mostly of the genus Euphausia) that grow to two inches (five centimeters) long and provide a main food for baleen whales and some kinds of fishes.


Site Credits   |   Privacy Policy
© Copyright National Geographic Television & Film. All rights reserved.