- A viral monkey, his plushie, and a 70-year-old experiment: what Punch tells us about attachment theory The Conversation
- Viral monkey Punch rejected by mother given stuffed orangutan BBC
- The tragedy of Punch the monkey: why do mother animals abandon their offspring? The Guardian
- Abandoned baby monkey finds comfort in stuffed orangutan, charming zoo visitors Reuters
- Give Punch a break! Zoo responds to heartbreaking video of baby monkey USA Today