Southern Resident Killer Whales, J-Pod with Calf J59 Recorded on SIMRES Hydrophones 

Southern Resident Killer Whales, J-Pod with new calf, J59, recorded on the SIMRES East Point hydrophones on March 1, 2022. A study published in 2006, by Orca Lab researchers found that orca pods increase their vocalizations around the time of a new birth. Read the study here: asa.scitation....