スミソニアン国立動物園さんのインスタグラム写真 - (スミソニアン国立動物園Instagram)「💦 Dive into the fascinating world of Shark and Ray Awareness Day! Brace yourself for a fin-tastic fact: freshwater stingrays continuously shed and regenerate their spines. It's not unusual to spot a freshwater stingray sporting two spines at once! 👋 Visit Amazonia for a ray-mazing adventure with our freshwater stingrays. . . . 🌎 Freshwater Stingrays are highly sought after in the illegal pet trade, putting their population at risk. Although the current conservation status is unknown, scientists believe that they may be endangered. To help these species, share their story, choose pets wisely, and remember: wild animals require special care and commitment. . . . Photo: A freshwater stingray swims through the Amazonia exhibit.」7月15日 5時38分