Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Islands and Protected Areas of the Gulf of California' has mentioned 'Mammals' in the following places:
Occurrence Sentence Text Source
The gulf sustains a large number of marine mammals, many of which are rare and endangered.
There are some 900 species of fish, around 90 of them endemic, and roughly one third of the World's marine mammals occur within the property.
The serial property provides habitat for roughly one third of the worldxe2x80x99s total number of marine mammals, sometimes in impressive numbers, for example huge colonies of California Sea Lion.