Anyone know what the traits you need on each of the races to increase their essence?
The male variants are what other people have said, but I know the others for sure:
Foxen Vulpuss: Swift
Foxen Sionnach: Swift
Vulwarg Lykos: Hornball
*Vulwarg Wulf: Hornball
Risu: Hornball
Bovaur Ayrshire: Fertile
Bovaur Mare: Swift
Bovaur Minotaur: Hornball
*Bovaur Bull: Hung
Dragon Wyvern: Hedonist
*Dragon Drake: Stoic
Titan: Enlarged
Formurian: Juicy
Thriae: Nectar
Neko: Nympho
Harpy Kestrel: Charmer
Harpy Bat: Charmer
Sylvan Elf: Debauched
Sylvan Orc: Stoic
Sylvan Goblin: Diminutive
Sylvan Slime: Debauched
Starfallen Carrier & Spore: Melding
*Starfallen Seeder: Melding
Seraphim: Divine
Demon Succubus: Nympho
Demon Cambion: Busty
Demon Incubus: I'm fairly certain it's Satyriasis, but I couldn't cheat edit it onto an incubus (the neph appeared when I filtered by Satyriasis, but the trait wasn't visible and it wouldn't work for essence level), and I couldn't find it from checking wild incubi. I'm thinking it's either bugged or unimplemented.
Also, you *can* get gold traits by breeding two silvers. A lot easier than finding a wild gold.