เม่นสองตัว
Acknowledgements
Image source
https://pixabay.com/th/photos/porcupine-%e0%b8%aa%e0%b8%b1%e0%b8%95%e0%b8%a7%e0%b9%8c-%e0%b8%aa%e0%b8%b1%e0%b8%95%e0%b8%a7%e0%b9%8c%e0%b9%80%e0%b8%a5%e0%b8%b5%e0%b9%89%e0%b8%a2%e0%b8%87%e0%b8%a5%e0%b8%b9%e0%b8%81%e0%b8%94%e0%b9%89%e0%b8%a7%e0%b8%a2%e0%b8%99%e0%b8%a1-4181179/