I have seen little, honestly no, evidence for knew species.
Observed Instances of Speciation
Here's more new species than you can shake a stick at. I would point out that even Answers in Genesis grants that new species do arise, which is why they've adopted the "kinds" argument - that no new "kinds" can arise.
You may wish to read the definitions of species at the beginning of the faq. It's hardly possible to argue about new species without defining what a species is.
In particular I find this speciation event very interesting (it's towards the bottom of the page) because it's not only a new species, but a new species in a whole different family than its ancestors:
quote:
5.9.1 Coloniality in Chlorella vulgaris Boraas (1983) reported the induction of multicellularity in a strain of Chlorella pyrenoidosa (since reclassified as C. vulgaris) by predation. He was growing the unicellular green alga in the first stage of a two stage continuous culture system as for food for a flagellate predator, Ochromonas sp., that was growing in the second stage. Due to the failure of a pump, flagellates washed back into the first stage. Within five days a colonial form of the Chlorella appeared. It rapidly came to dominate the culture. The colony size ranged from 4 cells to 32 cells. Eventually it stabilized at 8 cells. This colonial form has persisted in culture for about a decade. The new form has been keyed out using a number of algal taxonomic keys. They key out now as being in the genus Coelosphaerium, which is in a different family from Chlorella.
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