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6 votes

What snake is this? Is it venomous?

Looks like an eastern copperhead (Agkistrodon contortrix). It is one of 6 venomous snakes in Arkansas (of a total ~39 AR species; see University of Arkansas). See Herps of Arkansas for a nice range ...
theforestecologist's user avatar
5 votes

If the shrimp is a decapod, why does it have 20 legs? (10 swimming + 10 walking legs)

Species are classified based on common ancestry. See Decapods aren't classified together because of the number of legs they have. That's where the order got ...
Bryan Krause's user avatar
  • 45.9k
4 votes

Butterfly wings with ragged edges - worn out, camouflage, fungus, or something else?

In both these cases, the butterflies are old (relatively speaking) and worn. Usually, adult butterlies only live during a specific season (which usually can last weeks to months) or with several ...
fileunderwater's user avatar
1 vote

What is the term for a missing feature in a descendant that was present in an ancestor which defines a clade?

Maybe you're thinking of a vestigial trait? In snakes, legs are considered "vestigial"; some snakes retain remnants of legs and pelvis (
Lynnkz's user avatar
  • 81
1 vote

Have any animal been discovered which don't have any kind of symmetry?

Sponges. Everything else is either radially or bilaterally symmetric.
Sir Thinksalot's user avatar

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