Tangled Bank # 61 is up on Epigenetics News. I will be hosting the 71st edition here, at The Voltage Gate on January 17th.
Carnival of the Green #42 has been up for a few days now at The Disillusioned Kid (for some reason it's not linked to me on Technorati, so I didn't see it until today).
Circus of the Spineless #12 is great as usual, especially with this neat post about ancient giant invertebrates. I signed on to host the Circus for January as well since it won't be right smack in the middle of the semester.
Last but definitely not least, Mendel's Garden #5 will be up at evolgen in a few days. The deadline for entries is tomorrow. I will be hosting the Garden as well in the middle of September.