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Ryggradsdjur (vertebrater)
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Finding a salamander in the woodlands rates as one of the most enjoyable surprises of an early morning hike. Active mainly at night, these secretive, shiny, lizardlike amphibians …
Robins may be the official harbingers of spring, but the arrival of the wood-warbler signifies the real beginning of the season. These brightly colored songsters, most of whom have …