#1
S1E2
Frozen Worlds
On the unforgiving frontier of climate change, polar bears, walruses, seals and penguins find their icy Edens in peril.
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The peaks and the valleys. Find the essential episodes — and the ones to skip.
#2
S1E3
Jungles
Jungles and rainforests are home to an incredible variety of species like preening birds, intelligent orangutans and remarkable ambitious ants.
#3
S1E8
Forests
Examine the fragile interdependence that exists between forests' wide variety of residents, including bald eagles, hunting dogs and Siberian tigers.
#4
One Planet
S1E1
#5
The High Seas
S1E6
#6
Coastal Seas
S1E4
#7
From Deserts to Grasslands
S1E5
#8
Fresh Water
S1E7
#9
The Next Generation
S2E3
#10
World on the Move
S2E1
Lowlights
As snow geese, antelope, army ants and gray whales dodge predators and pollution, get a closer look at how the modern world impacts animal migration.
#11
Following the Sun
S2E2
#10
World on the Move
S2E1
#9
The Next Generation
S2E3
#8
Fresh Water
S1E7
The Quality Arc
Each point is an episode, plotted in order. Colored bands mark season boundaries. Look for the rise, the plateau, or the decline.
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Episode Engagement
High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.
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Season Momentum
Did each season build or fizzle? Green means the finale outscored the premiere. Red means the opposite. Longer arrows, bigger swings.
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Season Consistency
How steady is each season? Tightly clustered dots mean reliable quality. Scattered dots mean a wild ride.
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