Groddjur (amfibier)
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Despite their abundance in many parts of North America, salamanders have generally been neglected by all but a few specialists. In this book—first published in 1943—Sherman C. …
The preeminent naturalists Albert Hazen Wright and Anna Allen Wright spent years assembling the wealth of material on frogs and toads appearing in this widely used handbook, the …
For years Albert Hazen Wright and Anna Allen Wright traveled extensively, attempting to observe every species of snake in North America in its natural surroundings and collecting …