1 snow, ice, rock
2 tundra, river meander
3 June, 75 degrees N
4 July, 75 degrees N
5 vegetation
6 perennial grasses
7 low perennials
8 very small, very old
9 underground shrubs
10 underground shrub
11 heat-trapping butterflies
12 many-year-old caterpillar
13 black spruce monoculture
14 some broadleaf trees
15 cylindrical crown
16 low sun
17 midnight sun
18 arctic lemming
19 short-tailed weasel
20 weasel teeth
21 weasel molars
22 arctic fox
23 wolves
24 wolf carnasials
25 snowy owl
26 skuas
27 skua fertilizer
28 insectivores
29 insectivore chicks
30 bird food
31 sandpipers
32 Eider ducks
33 Eiderduck creche
34 champion migrator
35 sea birds
36 seals
37 musk ox
38 gregarious musk oxen
39 slow decomposition
40 caribou/reindeer
41 antlers?
42 ptarmigan
43 ptarmigan in winter
44 ptarmigan caecum
45 ptarmigan caecum
46 ptarmigan gizzard stones
47 ptarmigan crop
48 ptarmigan lunch
49 bears
50 bear litters
51 salmon runs
52 coal
53 mastodont
54 mammoth
55 Iclandic countryside
56 Iclandic countryside
57 Iclandic countryside
58 Volcan Orizaba, Mexico
59 Volcan Popcatapetl, Mexico
60 Chilean andes
61 tussock plants
62 tussock plants
63 guanacos
64 guanaco teeth
65 spring in a cold world
66 snow melt edge
67 snow melt edge
68 even under the snow
69 a wool skirt
70 glaciers on mountains
71 barren glaciated now
72 barren glaciated now
73 oak, 2400 m Costa Rica
74 4,500 m, Venezuela
75 a dandelion forest
76 a dandelion woolly tree
77 even woolly leaves
78 photosynthesize?
79 solufluction
80 solufluction