Assertion: sea urchin's number | /r/ObjectUse | used for souvenir
Facets:
Source sentences:
text: Because data is lacking on the sizes of the various seahorse populations, as well as other issues including how many seahorses are dying each year, how many are being born, and the number used for souvenirs, there is insufficient information to assess their risk of extinction, and the risk of losing more seahorses remains a concern.