Sentence examples for is extinct even from inspiring English sources
However, if only one parent is extinct, even morphological identification of the same hybrid taxon may become impossible.
Once found from Turkey to the eastern coast of Russia, it is now concentrated in pockets of South and East Asia, though even here it is extinct in some countries such as Pakistan and down to fewer than 50 individuals in others, including Cambodia, China, Laos and Vietnam.
In general, isolated individuals are functionally extinct, even though alive, because they are unable to reproduce except via self-pollination and their progeny are likely to suffer inbreeding depression if they manage to grow in the disturbed environment.
It may be spectacularly beautiful out here in the foothills of the Sierra Nevada, 26 miles from Lake Tahoe, but survival is difficult without black-and-whites and egg creams (although they are almost extinct, even in New York).
The region is now dominated by pasture, some of which is very well managed, and by second growth vegetation, suggesting that any populations that may once have existed are now extinct even in second growth near roads.
Many of the Blaschka invertebrates have declined and some, especially deep-water species of octopus and squid, may even be extinct.
The atlas has been going extinct even faster than the rest of its kindred published-on-paper species.
