Tahlequah, the Southern Resident orca who carried her dead calf for 17 days in 2018, is mourning the loss of another newborn, ...

In 2018, an orca mother refused to abandon her dead calf. Instead, she pushed its body for 17 days. Now she is doing it again ...

In 2018, researchers observed J35 pushing her dead calf along for 17 days, propping it up for more than 1,000 miles (1,600 ...

A killer whale that sparked hope after being seen with a new calf six years after carrying her dead baby around has lost ...

The southern resident orca population marked the turn of the year with both heartbreak and hope: the death of a newborn calf ...

The whale mother who embodied the sheer force of a mother's love in mourninghas lost another calf and is carrying its body ...

The southern resident orca population marked the turn of the year with both heartbreak and hope: the death of a newborn calf ...

A team at the University of Calgary is making scientific advances in understanding plant adaptation, which could ultimately be used to find ways to make agricultural crops more resilient to heat ...

The spiraled tusk juts from the head and can grow as long at 10 feet. Unlike some whale species that migrate, narwhals spend their lives in the Arctic waters of Canada, Greenland, Norway and Russia.

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Earth from space This 2014 satellite photo shows Pakistan's Khor Kalmat tidal lagoon brimming with water at the heart of an arid desert. This fluctuating body of water, which looks like "ink ...