Bones actress Emily Deschanel gave birth to her first child, a son, last Wednesday; she and her It's Always Sunny in Philadelphia husband David Hornsby named their newborn Henry Hornsby.

The longtime animal rights activist maintained her vegan diet throughout her pregnancy.

Deschanel's family and friends took to Twitter to express their congrats. Sister Zooey Deschanel looks forward to her aunt duties: "I am super excited to be an aunt!" Bones co-star TJ Thyne couldn't quite contain his excitement: "CONGRATULATIONS EMILY D!!!!!!!!!!!!!!"

Congratulations to the new parents!

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