Seabeast (Four Way Books), the fifth full-length book of poems by Guyanese-American Rajiv Mohabir, takes the form of a bestiary, a catalogue of creatures — specifically, of whale species. The complicated, sometimes violent, and occasionally heartbreaking relations between the human and the nonhuman are the meat of these poems, which journey between the strange and the familiar. Mohabir reminds the reader that, like humans, whales enjoy rich social lives, are restless wanderers, and have languages — and even songs — of their own. But there is also unfathomable mystery in their submarine lives, and the cruelty inflicted upon these creatures — our air-breathing, warm-blooded distant cousins — is not so different from the cruelties we inflict upon our fellow Homo sapiens.