This #JaneGoodallDay#, we honor the life and legacy of pioneering scientist, conservationist, animal advocate, educator, and National Geographic Explorer Jane Goodall, whose groundbreaking chimpanzee research helped redefine our relationship with humans' closest relatives. #StepIntoWonder#

Jill and I are deeply saddened to learn of the passing of Jane Goodall whose activism, vision, and message of hope mobilized a global movement to protect the planet. Above all, Jane taught us that when we search for humanity in the natural world around us, we discover it within ourselves. We are sending our love and strength to the Goodall family and everyone who was touched by her remarkable life of service.

National Geographic Explorer Biruté Galdikas has passed away at the age of 79. One of the so-called Trimates, alongside Dian Fossey and Jane Goodall, she conducted the first long-term study of orangutans. Read her iconic 1975 National Geographic cover story: https://t.co/ABJmNBGS1A

There’s one word that comes to mind when I think of Mike Castle: dignity. Riding the train back and forth together to Washington for nearly two decades, I got to know Mike as a thoughtful and kind man — a colleague who became a true friend. Mike was defined by his integrity, and for that reason, you couldn’t find another member of Congress who would say a bad word about him. He was respected in Washington, and beloved by his constituents. Mike had a backbone made of steel, and when faced with that existential question politicians sometimes face — what are you willing to lose an election over? — Mike stood on principle. He took votes because he knew they were right, not because they were popular. Mike will go down in the history of our state and country as an honorable and effective public servant. A man of his word who time and again put country over self. Someone we could all be proud to have as our Governor and Representative. All of us in Delaware owe Mike a debt of gratitude. Jill and I and the entire Biden family are deeply saddened by Mike’s passing. Our hearts go out to Jane, the Castle family, and the dozens of women and men who worked alongside Mike to serve the people of our state.