Paragraph 2
The conversation with Twain was like a
of greetings. Whales use contact
so other whales know where they are. The scientists made 36 calls over a 20-minute
. Each
, Twain responded by calling back at the same
. A scientist told the Business Insider
that the research could make it
to talk to aliens. She said: "There are
intelligences on this planet. By studying them, we can better understand what an alien
might be like because they are not going to be
like ours."
