Ari Daniel, NPR

Ari Daniel, NPR
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northern elephant seals

Think you’re tired? This animal goes for months with only two hours of sleep a day

Scientists have discovered northern elephant seals are often getting less shut-eye than most others in the animal kingdom.
killer whales

Killer whale moms are still supporting their adult sons — and it’s costing them

Scientists believe Southern Resident killer whale moms bring their sons food to make them better candidates for breeding.