Genesis 1:30

"'And to all the beasts of the earth and all the birds in the sky and all the creatures that move along the ground—everything that has the breath of life in it—I give every green plant for food.'  And it was so."  Genesis 1:30 NIV

The QBible translates "everything that has the breath of life in it" as all the creatures "wherein there is life."  Here someone paraphrased it as "everything that has living breath."  It all comes down to the same thing that all living creatures were vegetarian.  God gave them plants as food.  Death was not in the garden.