Core Keeper Eggs: Dodo Eggs, Pet Eggs and Where to Find Them

Summary

There are 3 kinds of eggs in Core Keeper

The egg you eat: Dodo Egg
Feed bugs to the farm animal Dodo and it lays one every 10 minutes. It is a cooking ingredient.
Pet eggs
Keep them in an Egg Incubator (needs power) for 30 minutes and a pet hatches. Farm animals never lay pet eggs.
Valuables named "egg"
Petrified Egg and Amber Fish Egg are valuables and never hatch.

Dodo Eggs: How to Get Them and What They're For

How to get: feed bugs to the farm animal Dodo and an adult lays one every 10 minutes. Dodos live in Azeos' Wilderness and the Desert of Beginnings.
Uses: eat it as is, or use it as a cooking ingredient in the Cooking Pot.
Getting lots of them: the fastest way is to breed more dodos (breeding) and automate their food (Hardened Sap).

Pet Eggs and Where to Find Them

Put a pet egg in a powered Egg Incubator and after 30 minutes it becomes a cracked egg. Use the cracked egg and a pet is born.

Egg	Pet that hatches	Main sources
Loyal Egg	Subterrier	Digging spot, Digging spot (Azeos' Wilderness), Digging spot (The Sunken Sea), etc.
Curious Egg	Embertail	See how to obtain
Lively Egg	Owlux	Large Stoneware Pot, Stoneware Pot, Large Wooden Nature (breakable object), etc.
Oozy Egg	Jr. Orange Slime	Glurch the Abominous Mass
Nimble Egg	Fanhare	Large Nature (breakable object), Flower Vessel
Oozy Slippery Egg	Jr. Blue Slime	Morpha the Aquatic Mass
Oozy Poison Egg	Jr. Purple Slime	Ivy the Poisonous Mass
Oozy Lava Egg	Jr. Lava Slime	Igneous the Molten Mass
Oozy Royal Egg	Prince Slime	See how to obtain
Fuzzy Egg	Pheromoth	Large Mold (breakable object), Large Ancient Crate, Infected Caveling
Squishy Egg	Snugglygrade	Urschleim, Cultist Chest, Colossal Amoeba
Arcane Egg	Arcane Symbiote	Nature Cicada, World Chest Nature, Scarlet Chest
Pest Egg	Electro-Pet	Electro-Pest, Abiotic Factor Large (breakable object), Abiotic Factor (breakable object)
Nocturnal Egg	Earie	Iron Chest, Large Ancient Crate, Large Wooden Nature (breakable object), etc.
Hoppy Egg	Hoppet	Searpent, Fishing in The Sunken Sea (non-fish catches), Sea Biome Chest, etc.
Lazy Egg	Cattiva	Oasis Chest, Large Oasis Flower Vessel, Oasis Flower Vessel
Glimmering Egg	Azeos Jr.	Azeos the Sky Titan

Which pet is strongest is covered in best pets.

Valuables Named "Egg" (They Don't Hatch)

Item	Main sources
Petrified Egg	Hive Dungeon, Azeos the Sky Titan
Amber Fish Egg	Fishing in The Undergrounds (non-fish catches)

Uses and sell prices are on each item's page.

Animal names and descriptions are the game's official English text. What each animal eats and the biomes where Drohmbles, Strolly Polies, Dodos and Kelples spawn are read from the game files (Core Keeper 1.3.0.6). Where Moolins, Bambucks and Orexes live and other ranching mechanics (breeding, growth, products) are based on the Core Keeper Wiki (Fandom) page Cattle (CC BY-SA 3.0), summarized in our own words; we have not confirmed them in the game files.

More ranching guides

Unless a note on the page says otherwise, numbers are read from the game files of Core Keeper 1.3.0.6 (prefabs, configuration files, drop tables and the game's program) and calculated by this site, including upgraded (per-level) values, sell prices and mana costs. Names and descriptions are the game's official English text. Only reinforcing materials, minion and pet attacks and some food values are based on the Core Keeper Wiki (Fandom) data (CC BY-SA 3.0). Core Keeper and its images are © Pugstorm. This is an unofficial fan site.