Grand Rounds Vol 2 (27) is rather incredible this time around.  Don’t miss the best of the medical blogosphere.

Tangled Bank #50 is full of great science blogging.

I don’t normally point these out because I don’t advocate political carnivals (I’d spend too much time covering all the various ideologies were I to do such a thing).  That said, Carnival of the Liberals #9 is actually quite good because it focuses on science and philosophy.  This may be the only time I proffer a political blog carnival, but I think you’ll find this version worth the effort.

The 31st Meeting of The Skeptics’ Circle is quite extensive and very good.

I and the Bird #20 may be birdicious, but this iteration seems a bit lacking — on the presentation level, that is.

Birds in the News 53 once again has some great bird photos, an interesting update on avian influenza, a story from the UK reminiscent of Alfred Hitchcock’s The Birds, and a very intriguing story about an American robin who was blown across the North Atlantic and now lives in the UK.

Friday Ark #80 is simply animalicious this week.

Weekend Cat Blogging 42 has links to some great cat photos.

105th Carnival of the Cats will satiate all your finicky feline tastes.