A newborn orca calf, estimated to be about a week old, has been spotted in Washington state’s Puget Sound, bringing hope and cautious optimism to researchers and residents alike. The small calf was seen accompanying K pod, which is "the most endangered pod in this endangered population,” researcher Maya Sears told ABC News. David Muir reports. https://abcnews.go.com/?utm_source=facebook&utm_medium=social&utm_campaign=dhfacebook&utm_content=app.dashsocial.com/abcworldnewstonight/library/media/621

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