Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
rob74
on Oct 19, 2021
|
parent
|
context
|
favorite
| on:
Why soda bottles have gaps in their threads (2000)
I was aware of the cloacas, but I didn't know that some birds do have penises, so thanks for that important info! BTW some mammals (notably cats and dogs) also "store" their penises when not mating...
rudian
on Oct 19, 2021
[–]
You might enjoy researching the duck’s reproductive system.
Consider applying for YC's Spring batch! Applications are open till Feb 11.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
