Related Clues:

• Beasts that work in pairs
• Posse carriers
• Yoked farm beasts
• Plowing team
• Beasts that pull plows
• One working to pen ten strong animals
• Oregon Trail animals, once
• One ordered about ten cattle
• Pack of yaks
• They have stable homes
• Bovines pulling a plow
• Ones with a lot of pull in agriculture?
• Mounts first of rings in flexible pipes
• More than one animal in buffalo, fox, giraffe and penguin, last of all
• Draft teammates?