 This is 1A. I'm Todd Zwiligin for Jen White. For today's installment of our science series, Scientific Method, we'll be talking about how animals grieve and what they can teach us about our own relationship to death. But first, a check-in on the war in Ukraine. The United States is expected to send $150 million in munitions to Ukraine. This comes on the heels of the Pentagon shifting its policy to allow Ukraine to strike on Russian soil in self-defense.