Related Clues:

• Like Chang and Eng
• Having a common ancestor
• Having a resemblance
• Like siblings
• Like, with "to"
• Having similar genetics
• Having the same properties
• Parallel (to)
• In the same family
• Slender cat
• Of the same ilk
• Like cousins
• Like the cats in 'Lady and the Tramp'
• Two-way, as a sprinkler
• Allied by nature