Assertion: narwhal's food | /r/HasProperty | ready to mate
Facets:
Source sentences:
text: Scientists believe that it can sense changes in its environment, such as the salt content of its watery home, and that it may help them find food and females that are ready to mate.
text: Scientists believe that it can sense changes in its environment, such as the salt content of its watery home, and that it may help them find food and females that are ready to mate.