Imagine that the bone in your forehead

gave you super powers to “see” – through dark –

a school of fish or empty bellied shark –

things you like to eat, something you must dread.

A full control of sonar waves allow

cetaceans greater focus than we thought

to ascertain if it’s catch or be caught

established by the muscles of their brow.

They can direct sonar in such tight beams

they differentiate between a crab

or squid, know how to swim for each to grab

their prey with planned efficiency it seems.

To know if a shark is hungry that day,

their ultrasound’s the most effective way.