Ponds and lakes can vary in size and have limited plant and animal species; they are divided between three zones according to their distance from shore and depth. Algae, floating plants, insects, fish, and amphibians live in the top zone. What lives in the next zone down? Find out by visiting these websites.

 Vertebrate, Invertebrate, & Wildlife
10 Deadliest Lakes on Earth
10 Deadliest Lakes on Earth, Written by Michele Collet, Scribol staff, "These lakes may be as beautiful as nature intended, but they hide the fact that they are in fact killers, with deadly secre
12 of the Most Beautiful Lakes in the World
12 of the Most Beautiful Lakes in the World, The World Geography, Beautiful photos of lakes and their surroundings in Croatia, Canada, China, Slovenia, Austria, Mexico, Italy, and the United State
7 Incredible Drowned Churches
7 Incredible Drowned Churches, Written by Michele Collet, Scribol staff, Amazing pictures, the result of changing nature's path for dams and reservoirs.
A Virtual Pond Dip
A Virtual Pond Dip, Microscopy UK, Interactive activity.
Cape Ann Vernal Pond Team Video
Cape Ann Vernal Pond Team Video Visit the web site for the video.
Christmas Trees Being Used To Improve Ecosystem At Bear Lake
Christmas Trees Being Used To Improve Ecosystem At Bear Lake, CBS Denver, Video length: 01:42 and article.
Disappearing Lake Shows Drought's Extent in New Space Image
Disappearing Lake Shows Drought's Extent in New Space Image, August 14, 2015, By Elizabeth Goldbaum, Staff Writer, Livescience.com. A lake straddling the California-Oregon border looks like an
Discover Canada's Lakes
Discover Canada's Lakes, CyberNatural Software Group, University of Guelph, A five part series to help you understand the origin, chemistry, and physical environment of lakes in Canada.
EEK! Lakes are Great
EEK! Lakes are Great, Wisconsin Department of Natural Resources, Text and illustration for younger students.
Extreme Environments: Great Salt Lake
Extreme Environments: Great Salt Lake, Genetic Science Learning Center, University of Utah, Great Salt Lake is teeming with life. The organisms that live in and around Great Salt Lake depend on
Global Warming Affects World's Largest Freshwater Lake
Global Warming Affects World's Largest Freshwater Lake, May 1, 2008, ScienceDaily.com, Nice photo with article.
Great Lakes Coast Ecosystems - Tales of the Coast
Great Lakes Coast Ecosystems, Tales of the Coast, Explains the different ecosystems surrounding the Great Lakes - beaches, dunes, and wetlands.
Great Salt Lake Ecology
Great Salt Lake Ecology, Genetic Science Learning Center, University of Utah, Get to know our salty neighbor and the creatures that live there; one of the features on the site is an interactive e
Invasive Species in the Great Lakes
Invasive Species in the Great Lakes, Article by Terrie Schultz, BrightHub.com, All-text article.
Lake Erie: The Once Dead Lake Now Struggling to Survive
Lake Erie: The Once Dead Lake Now Struggling to Survive, By Lisa Hossler, Scribol Staff , "Due to years of neglect and over-exploitation, Lake Erie was declared dead in the 1970s. The problem of
Lake Tahoe: The Serene Beauty of the California Alps
Lake Tahoe: The Serene Beauty of the California Alps, Written by perrya, Scribol staff, Beautiful photos with descriptions.
Lakes - NatureWorks
Lakes, NatureWorks, New Hampshire Public Television, Images and comprehensive information on lakes.
Lakes and Ponds Biome
Lakes and Ponds Biome, by Rob Nelson, UntamedScience.com, Has videos and numerous illustrations on lake zones and lake cycling.
North America's freshwater lakes are getting saltier
North America's freshwater lakes are getting saltier April 10, 2017, Cary Institute of Ecosystem Studies Article with several photos.
Oregon's 'Lost Lake' Is Disappearing Down A Big Hole, And Now We Know Why
Oregon's 'Lost Lake' Is Disappearing Down A Big Hole, And Now We Know Why, May 6, 2015, By Jacqueline Howard, Huffington Post, Video length: 0:51. For as long as anyone can remember, someth
Pond Ecology
Pond Ecology, Posted by brs0725, October 30, 2007, YouTube.com, Video length: 03:10.
Ponds - NatureWorks
Ponds, Image Credits: Clipart.com, NatureWorks, New Hampshire Public Television, Images and description of ponds and how they differ from lakes and how they are formed.
Russia's Lake Baikal: Preserving a Natural Treasure
Russia's Lake Baikal: Preserving a Natural Treasure, 03 JUN 2008: REPORT, By Peter Thomson, Yale Environment 360, Two images (click to enlarge) and text.
The Mysteries and Tragedy of Russia's Bottomless Karst Lake
The Mysteries and Tragedy of Russia's Bottomless Karst Lake, Written by: Yohani Kamarudin, Scribol staff, Eighteen photographs, with descriptions.
The Pond Habitat of the Frog
The Pond Habitat of the Frog, Zephyrus Interactive Education, Story about the life of a frog living in a pond; for early elementary.
The Problem of Cyanobacteria and Toxic Lakes
The Problem of Cyanobacteria and Toxic Lakes, By Yvonne McArthur, Scribol.com, Learn about the microorganisms that can turn a beautiful lake the color of pea soup and make the water as toxic as
Vernal Pond - Camp Naturalist
Vernal Pond - Camp Naturalist, Wood & Western Chorus Frogs Calling, April 7, 2008, Please visit the website to view photographs,
What's It Like Where You Live? Lakes & Ponds
What's It Like Where You Live? Lakes & Ponds, Missouri Botanical Garden, For younger students.