Lionfish are super digesters, Voyager 2 goes interstellar, carbon capture, AI reads scientific literature, fear, trauma and inheritance and animal heart attacks

Published: Nov. 8, 2019, 5:10 a.m.

The lionfish is an Olympic athlete of digestion — and that's an ecological disaster; After a 42-year journey, Voyager 2 goes interstellar; 'We have to do everything:' Why capturing carbon shows real promise; AI is reviewing scientists' old work and discovering things they missed; Fear and trauma are useful for animals — can we learn from them how to live without it?; Do animals ever have heart attacks or is it just humans?