2014年11月10日 · A group of 20 tagged killer whales traveling at fairly rapid speed is followed as they head straight toward the summer nursery grounds of a pod of narwhal and their young. …

The narwhal (Monodon monoceros) is a species of toothed whale native to the Arctic. It is the only member of the genus Monodon and one of two living representatives of the family …

2017年2月21日 · Using data from concurrently tracked predator (killer whales) and prey (narwhal), we show that the presence of killer whales significantly changes the behavior and distribution …

Apart from man, the main predators of the narwhal are the killer whale and the polar bear. Narwhals react to the presence of killer whales by moving close to land or sea ice, and forming …

2012年1月30日 · The killer whales arrive in the eastern Canadian Arctic as the ice begins to recede in July, just as the other marine mammals begin giving birth to their calves and pups. …

Killer whales are the main predator of narwhals and rely on their group hunting tactics to capture their prey. Narwhals have adaptations such as their tusk and diving capabilities that help them …

2012年1月30日 · Results detail local knowledge of killer whale prey items, hunting behaviour, prey responses, distribution of predation events, and prey capture techniques.

2014年11月26日 · Contrary to the friendly depictions offered up by ocean theme parks, the killer whale (also known as the orca or blackfish), is the most devastating predator to roam the open …

We explore the consequences of climate change-related range expansions by a top predator by estimating killer whale abundance and their possible consumptive effects on narwhal …

Narwhals showed a suite of behavioral changes in the immediate presence of Killer Whales including slow, quiet movements, travel close to the beach (<2 m from shore), use of very …