How many hearts does an octopus have?
An octopus has three hearts: two pump blood through the gills and one pumps it to the rest of the body.
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- Are Southern Resident orcas endangered?
“The Southern Resident orcas of the Pacific Northwest are endangered, with fewer than 80 left.”
Reference: NOAA Fisheries
More from this shelf
What is the largest dolphin?
The orca, also called the killer whale, is actually the largest member of the dolphin family, not a true whale in the everyday sense.
How many tigers are left in the wild?
A 2022 global estimate put the wild tiger population at around 5,500, a slight rebound after tiger numbers hit historic lows in the early 2000s.