Save the Rhinos Day; Gardening for Wildlife Month; Release of the documentary film, Meet Your Meat; Publication of When Elephants Weep: The Emotional Lives of Animals, by Jeffrey Moussaieff Masson and Susan McCarthy; Animal Equality: Language and Liberation, by Joan Dunayer; The Holocaust and the Henmaid’s Tale: A Case for Comparing Atrocities, by Karen Davis; Muzzling a Movement: The Effects of Anti-Terrorism Law, Money, and Politics on Animal Activism, by Dara Lovitz; Breasts: The Owner's Manual: Every Woman's Guide to Reducing Cancer Risk, Making Treatment Choices, and Optimizing Outcomes, by Dr. Kristi Funk; Face to Face with Animals: Levinas and the Animal Question, edited by Peter Atterton and Tamra Wright; May Day, by Sara Teasdale.

National Animal Advocacy Day; National Raisin Day; Publication of The Internet of Animals: Discovering the Collective Intelligence of Life on Earth, by Martin Wikelski; Spring, the Sweet Spring, by Thomas Nashe.

National Shrimp Scampi Day; Publication of Suffering, Empathy, and Ecstasy: Animal Liberation as the Furthest Reaches of Our Moral Evolution, by Jeremy Yunt; Think of Others, by Mahmoud Darwish.

Save the Frogs Day; The Frog Pond Haiku, by Matsuo Bashō.

International Crow and Raven Appreciation Day; World Tapir Day; International Hyena Day; Birthday of Coretta Scott King; The Flight of the Crows, by Emily Pauline Johnson.

Publication of Atlas of Extinct Animals, by Radek Maly; Presentation by Professor John Sanbonmatsu: The Omnivore's Deception: Veganism in Defense of Terrestrial Life; The Animals are Leaving, by Charles Harper Webb.

World Penguin Day; Birthday of Michael Aufhauser; Publication of Are We Smart Enough to Know How Smart Animals Are?, by Frans de Waal; Publication of How To Argue With Vegans: An Analysis of Anti-vegan Arguments, by Benny Malone, illustrated by Richard Watts; In Youth, I Have Known One, by Edgar Allan Poe.

World Day for Animals in Laboratories; Birthday of Lord Hugh Dowding; Birthday of Joanne Molinaro, aka, The Korean Vegan; Publication of Vegan Is Love, by Ruby Roth; Publication of The Animals' Freedom Fighter: A Biography of Ronnie Lee, Founder of the Animal Liberation Front, by Jon Hochschartner; On Children, by Kahlil Gibran.