CELPIP Listening Part 6 Practice Test: Fossil Discovery Dispute

MAN: A newly excavated fossil bed in a remote ridge of the Alberta badlands near Drumheller has reopened a debate among paleontologists. At issue is how long a mid-sized duck-billed species' offspring stayed near adults after hatching, rather than dispersing within days as long assumed. The disagreement reaches further than duration: how a museum should handle a shifting exhibit, and how much weight one unusual site deserves against dozens of others. Paleontologist Adrian Kalinowski, the excavation's lead, argues the new evidence overturns the standard timeline. He says the site preserves five juvenile skeletons, estimated by bone density at four to eleven months old, clustered around one adult in a way unlikely from a flood or predator kill. Kalinowski believes the age spread shows the group stayed together through most of their first year, not dispersing within days. He wants the specimen described publicly as evidence of extended parental investment. Museum curator Felicity Nkemelu, who's run the Drumheller Museum's exhibits for eleven years, shares the excitement — but she's been burned before. Back in the nineties, a whole gallery had to be quietly rebuilt after a dating claim didn't hold up, and she still winces thinking about the cost. The museum is already drafting plans for a permanent dinosaur wing built partly around this find, and her worry is simple: can a permanent exhibit be changed fast enough if peer review disagrees, given how much pricier that is than fixing a temporary one? She'd rather wait on the wing until the interpretation settles. Local tour guides have already started fielding questions about the find from visitors eager to see it before the interpretation is finalized, even though the fossil itself sits in a corner of the museum most visitors currently walk past without a second look. Independent researcher Simon Abernathy is skeptical of the age spread itself. He points to the Two Forks Basin site, where a similar cluster of seven mixed-age juveniles was first read as parental care, later shown through sediment analysis to reflect animals sheltering together during a drought. Abernathy argues Kalinowski's site can't yet be told apart from a similar drought-shelter scenario, and wants growth-ring counts from the largest juvenile's leg bone to confirm the age spread first. For now, the fossil sits in the side gallery, signage describing the age-spread interpretation as provisional, while the wing's plans stay on hold. Several visiting school groups keep asking when the display might move once a paper comes out; the museum still hasn't said. Independent lab technicians say the growth-ring test will take several months, since the bone must be sectioned carefully. For a museum used to unveiling finished stories, waiting on a lab result first is an uncomfortable position to be in. A regional fossil-heritage council, brought in to help the museum and the two researchers find common ground, has proposed a specific middle path. Keep the fossil in the side gallery with dual-interpretation signage, and revisit the permanent-wing decision only once the growth-ring results are back, whichever way they point.