Yellow-bellied three-toed skink

She’s transitional! This is a live-bearing reptile carrying a load of eggs, and with a modified membrane to secrete calcium and other nutrients to the embryos.

She’s also looking a bit pugilistic about it all, too.

This fascinating clip featuring Sir David Attenborough captures an enchanting courtship between two incredibly graceful sea creatures.

Limax maximus

(Warning! Video below flaunts fantastic gymnastic hermaphrodite sex. You will be forever crippled with deep feelings of sexual inadequacy forever more after watching it.)

Dionaea muscipula

Watch it in action.

(via Igor Siwanowicz)