Believing that I had discovered a frog
differing in structure from all known species, and possessing a strange
unique instinct of self-preservation, I carried my captive home,
intending to show it to Dr. Burmeister, the director of the National
Museum at Buenos Ayres-Unfortunately, after I had kept it some days, it
effected its escape by pushing up the glass cover of its box, and I have
never since met with another individual like it. That this singular
frog has it in its power to seriously injure an opponent is, of course,
out of the question; but its unexpected attack must be of great
advantage. The effect of the sudden opening of an umbrella in the face
of an angry bull gives, I think, only a faint idea of the astonishment
and confusion it must cause an adversary by its leap, quick as
lightning, and the violent hug it administers; and in the confusion it
finds time to escape. I cannot for a moment believe that an instinct so
admirable, correlated as it is with the structure of the fore legs, can
be merely an individual variation; and I confidently expect that all I
have said about my lost frog will some day be confirmed by others. Rana
luctator would be a good name for this species.
The toad is a slow-moving creature that puts itself in the way of
persecution; yet, strange to say, the acrid juice it exudes when
irritated is a surer protection to it than venomous fangs are to the
deadliest snake.
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