Geography Of The World
The Largest Ocean On Earth
The Pacific Ocean is the largest, deepest, and most storm-prone ocean, covering a third of Earth's surface with countless islands.
The US Lakes Where Alligators Live
Alligators inhabit many water bodies in the Southeast, including Lake Okeechobee and reservoirs like Toledo Bend, confirmed by wildlife agencies.
How Zebra Mussels First Reached North America
Zebra mussels traveled from Europe to the Great Lakes in ship ballast tanks. Trace the tiny clam's journey from the Black Sea to Lake St. Clair and beyond.
Why Some Invasive Species Fail To Survive In The Great Lakes
The Great Lakes are heavily invaded, yet most non-native species that arrive simply fail. Here's why cold, calcium, saltwater, and the locals stop them.
What Lives In The Ocean's Darkest Zone
The aphotic zone below 1,000 meters is dark and teeming with unique life forms like anglerfish, tubeworms, and snailfish, supported by chemical energy.
The Only Lakes In The World With Freshwater Seals
Only five distinct freshwater seal populations exist worldwide, each with unique evolutionary histories and specific geographic distributions.
The Difference Between The Deep Sea And The Abyss
The Difference Between The Deep Sea And The Abyss explained. The deep sea spans every dark ocean layer, while the abyss sits between 4,000 and 6,000 meters.
The Lakes With The Largest Waterfowl Migrations In North America
The Lakes With The Largest Waterfowl Migrations In North America draw millions of ducks, geese, and swans across the continent's four great flyways.
The Deepest Anyone Has Ever Gone In The Ocean
The Challenger Deep in the Mariana Trench is the ocean's deepest point, reached by rare expeditions due to extreme pressure and darkness.
The Lakes Where Muskies Grow Largest
A handful of lakes grow the biggest muskies in North America. Here are the trophy waters where 50-inch muskellunge are caught season after season.
East Germany
Founded in 1949 and gone by 1990, East Germany built the Berlin Wall and a vast police state. Explore the geography and history of the GDR.
What Are The Climate Zones Of The US?
Given that the contiguous United States spans the width of North America, it’s not surprising that the country has no fewer than nine unique climate zones.
The Longest Rivers in North America
From Montana's Rockies to Canada's Arctic, discover the longest rivers in North America and the vast watersheds that shaped a continent.
Largest Landlocked Countries In The World
From Kazakhstan's steppe to Chad's Sahara, discover the 9 largest landlocked countries in the world and the geography that cut them off from the ocean.
10 Largest Lakes In North America
There are 64 different noted lakes in North America. The following lakes are the top 10 largest lakes (by surface area) in North America.
Why The Great Lakes Are Called Inland Seas
Why The Great Lakes Are Called Inland Seas: at ocean scales, freshwater develops the waves, currents, stratification, and weather effects of a sea.
The Ocean Creatures That Can Live Without Sunlight
Sunlight diminishes quickly underwater, leading to perpetual darkness below 3,300 feet, where animals utilize unique methods to survive.
The Largest Glacial Lakes In The United States
Ice carved America’s largest glacial lakes into immense basins, leaving behind deep water, rugged shores, and a record of the last Ice Age.
The Largest Alpine Lakes In North America
The Largest Alpine Lakes In North America include Lake Tahoe, Yellowstone Lake, and Crater Lake, ranked by surface area high in the western mountains.
European Countries With The Most Forest Cover
Sweden has the most forest cover of any European country.
The Deepest Point In American Waters
The Deepest Point In American Waters is Sirena Deep, a hadal trench about 90 miles south of Guam that plunges roughly 35,151 feet below the Pacific.
How Many US Lakes Are Named Mud Lake?
How Many US Lakes Are Named Mud Lake? Over 900 in 33 states, with Michigan alone claiming 264, thanks to the shallow lakes left by Ice Age glaciers.
The Best Walleye Lakes In The United States
The Best Walleye Lakes In The United States include Lake Erie, Lake of the Woods, and Mille Lacs, prime waters for numbers and wall-hangers alike.
The Largest Lakes East Of The Mississippi River
The Largest Lakes East Of The Mississippi River include all five Great Lakes plus Okeechobee, Pontchartrain, Champlain, St. Clair, and Kentucky Lake.
The Sea Creatures That Glow To Lure Their Prey
The Sea Creatures That Glow To Lure Their Prey include the viperfish, anglerfish, and cookiecutter shark, each hunting by bioluminescent deception.
What Lies At The Bottom Of Lake Superior
What Lies At The Bottom Of Lake Superior, from the deepest known shipwreck and the doomed Edmund Fitzgerald to rare deepwater fish in perpetual dark.
How Many People Live In The Great Lakes Basin?
How Many People Live In The Great Lakes Basin? About 34 million residents across eight U.S. states and Ontario, from Detroit and Chicago to Duluth.
How Many Great Lakes Shipwrecks Have Never Been Found?
Thousands of shipwrecks lie beneath the Great Lakes. Learn why so many remain undiscovered and what makes each lake difficult to search.
5 Most Snake-Filled Bodies Of Water In Nebraska
Discover Nebraska’s snake-filled rivers and reservoirs, from the Missouri and Platte to Calamus Reservoir and the Snake River, plus the species found there.
How Much Of The World's Freshwater Is In The Great Lakes?
How Much Of The World's Freshwater Is In The Great Lakes? Just over 24% of surface freshwater, and only Lake Baikal holds more than all five combined.
The Deepest Man-Made Lakes In The United States
The deepest man-made lakes in the United States, ranked by the maximum depth each reservoir reaches at full pool, led by Lake Oroville at 690 feet.
10 Famous Landforms In The U.S.
There are not many countries in the world that contain the same amount of beautiful landforms as the U.S. does. Their beauty is unmatched and will leave you breathless!
Eastern European Countries
The 10 countries considered to be Eastern Europe were all once part of the eastern, communist bloc of countries led by the Soviet Union during the Cold War.
What Happens To Ships That Vanish At Sea
What happens when a ship disappears at sea? Explore the science behind vanished vessels, the real causes, and why the ocean sometimes keeps its secrets.
5 Most Snake-Filled Bodies Of Water In West Virginia
Though fatalities are extremely rare, it is best to understand these creatures' habitats and features so you can safely enjoy the beautiful riverside trails.
How Cold Is The Bottom Of The Ocean?
Most of the deep ocean floor stays between 32 and 39°F, even at the equator. A look at how cold the seafloor gets, and why it never warms up.
The US Reservoirs Closest To Dead Pool Status
A look at the US reservoirs closest to dead pool, from Lake Powell and Lake Mead to Elephant Butte, with the latest levels and what the risk means.
The Lakes Formed by Collapsed Caves
Ten lakes formed by cave collapses or openings, revealing massive underground caverns below, each with unique history or features.
The Lakes Formed by the Last Ice Age
Nine lakes across three continents, from Loch Ness to the Great Lakes, that glaciers carved during the last ice age and meltwater filled as the ice retreated.
The Caspian Sea Holds Three Times More Water Than the Great Lakes
The Caspian Sea holds over three times more water than all Great Lakes, but lakes provide essential freshwater for millions.