no they are not
sperm whales
sperm whales.
sperm whales.
Blue whales can produce over 40 gallons of sperm .
plankton
Blue Whales, Beluga Whales, Killer Whales, Sperm Whales, and Narwhals.
A pod of killer whales. sharks
Blue whales are usually about 30m long and Sperm whales are usually between 13 and 20m long. So Blue whales are usually 10-17m longer than sperm whales. (This is just the average length of these whales, bigger and smaller specimens do exist)
Giant squid and humans.
They're both aquatic mammals
The product from whales that was used in cosmetics--it's not anymore--is spermaceti, which comes from sperm whales rather than blue whales.
Killer Whales,humpback whales,sperm Whales And I Think Blue Whales Too.