Assertion: butterfly fish's egg | /r/HasProperty | held within the body
Facets:
Source sentences:
text: Stingrays are ovoviviparous, meaning the young are hatched from eggs that are held within the body, whereas skates are oviparous, meaning they lay eggs – these eggs are protected by a hard, rectangular case often called a “mermaid”s purse“!
text: Stingrays are ovoviviparous, meaning the young are hatched from eggs that are held within the body, whereas skates are oviparous, meaning they lay eggs – these eggs are protected by a hard, rectangular case often called a “mermaid”s purse“!