Plate 37
  • PGN0037. emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 38
  • PGN0038. emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 39
  • PGN0039. emperor penguin Aptenodytes forsteri chicks, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 40
  • PGN0040. emperor penguin Aptenodytes forsteri chicks, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 41
  • PGN0041. Adelie penguin Pygoscelis adeliae rookery, Cape Royds, southernmost colony of penguins, Antarctica
Plate 42
  • PGN0042. Adelie penguin Pygoscelis adeliae rookery, Cape Royds, southernmost colony of penguins, Antarctica
Plate 43
  • PGN0043. Adelie penguins Pygoscelis adeliae rookery, one parent broods eggs while mate forages 9 to 25 days, Cape Bird, Antarctica
Plate 44
  • PGN0044. Adelie penguins Pygoscelis adeliae rookery, one parent broods eggs while mate forages 9 to 25 days, Cape Bird, Antarctica
Plate 45
  • PGN0045. Adelie penguins Pygoscelis adeliae at rookery, starving parents seek access to sea to feed but are fearful of leopard seals Hydrurga leptonyx, Cape Bird, Antarctica
Plate 46
  • PGN0046. Adelie penguins Pygoscelis adeliae at rookery, starving parents seek access to sea to feed but are fearful of leopard seals Hydrurga leptonyx, Cape Bird, Antarctica
Plate 47
  • PGN0047. Adelie penguins Pygoscelis adeliae at rookery, starving parents seek access to sea to feed but are fearful of leopard seals Hydrurga leptonyx, Cape Bird, Antarctica
Plate 48
  • PGN0048. Adelie penguins Pygoscelis adeliae at rookery, starving parents seek access to sea to feed but are fearful of leopard seals Hydrurga leptonyx, Cape Bird, Antarctica