Whales & Dolphins

A marine mammal is a mammal that is primarily ocean-dwelling or depends on the ocean for its food. Marine mammals typically swim by moving their spine up and down. By contrast, fish normally swim by moving their spine sideways. For this reason, fish mostly have vertical caudal (tail) fins, while marine mammals have horizontal caudal fins.

Some of the primary differences between marine mammals and other marine life are:

  • Marine mammals breathe air, while most other marine animals extract oxygen from water.
  • Marine mammals have hair. Cetaceans have little or no hair, usually a very few bristles retained around the head or mouth.
  • Marine mammals give live birth. Most marine mammals only give birth to one calf or pup at a time, and are never able to birth twins or larger litters.
  • Marine mammals feed off milk as young. Maternal care is extremely important to the survival of offspring that need to develop a thick insulating layer of blubber.
  • Marine mammals maintain a high internal body temperature, unlike most other marine life.

The polar bear spends a large portion of its time in a marine environment, albeit a frozen one. When it does swim in the open sea it is extremely proficient and has been shown to cover 46 miles in one day! For these reasons, some scientists regard it as a marine mammal.

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19 Items found Print
All About Whales
by Roy Chapman Andrews
from Random House
for 4th-6th grade
Baby Whales Drink Milk
by Barbara Juster Esbensen
from HarperCollins
for Kindergarten-1st grade
$3.00 (1 in stock)
Dolphin Adventure
by Wayne Grover
from HarperTrophy
for 3rd-7th grade
in Animal Stories (Location: FIC-ANI)
$5.09 $3.50 (2 in stock)
Dolphin Treasure
by Wayne Grover
from HarperTrophy
for Ages 8-12
in Animal Stories (Location: FIC-ANI)
$5.09 $3.50 (1 in stock)
Dolphins - Coloring Book
Educational Read & Color Books
by Peter & Linda Spizzirri
from Spizzirri Press
for 2nd-5th grade
in Educational Read & Color Books (Location: COL-SPIZ)
$3.95
Dolphins!
A Step into Reading Book Level 3
by Sharon Bokoske and Margaret Davidson
from Random House
for 1st-3rd grade
in Step into Reading (Location: EARREA-STEP)
$4.99
Draw 50 Sharks, Whales, and Other Sea Creatures
by Lee Ames
from Broadway Books
for 3rd-8th grade
in Draw 50 (Location: ELE-ARTD50)
$9.99
Hunting for Whales
by Michael McHugh
from Great Light Publications
for 6th grade
in Adventure Stories (Location: FIC-ADV)
$6.76
In the Heart of the Sea
by Nathaniel Philbrick
from Penguin Putnam
for 10th grade-adult
in 20th & 21st Century Literature (Location: LIT7-20)
$14.45
Marine Mammals - Coloring Book
Educational Read & Color Books
by Peter & Linda Spizzirri
from Spizzirri Press
for 2nd-5th grade
in Educational Read & Color Books (Location: COL-SPIZ)
$3.95 $2.00 (1 in stock)
Moby-Dick
Signet Classics
by Herman Melville
from Signet Classics
Realistic Nautical Fiction for 9th-Adult
in 19th Century Literature (Location: LIT6-19)
$5.06
Moby-Dick
Everyman's Library
by Herman Melville
from Alfred A. Knopf, Inc.
Realistic Nautical Fiction for 9th-Adult
in 19th Century Literature (Location: LIT6-19)
$22.10
Moby-Dick
by Herman Melville
from Reader's Digest
Realistic Nautical Fiction for 9th-Adult
in 19th Century Literature (Location: LIT6-19)
Moby-Dick
by Herman Melville
from Penguin Putnam
Realistic Nautical Fiction for 9th-Adult
in 19th Century Literature (Location: LIT6-19)
$13.20
Moby-Dick
by Herman Melville
1st edition from Candlewick Press
for 4th-8th grade
in Adventure Stories (Location: FIC-ADV)
$18.69
Moby-Dick
by Herman Melville
1st edition from Candlewick Press
for 4th-8th grade
in Adventure Stories (Location: FIC-ADV)
$11.04
Whales - Coloring Book
Educational Read & Color Books
by Peter & Linda Spizzirri
from Spizzirri Press
for 2nd-5th grade
in Educational Read & Color Books (Location: COL-SPIZ)
$3.95 $1.50 (1 in stock)
Whales and Dolphins - Coloring Book
Dover Coloring Books
by John Green
from Dover Publications
for 2nd-6th grade
in Dover Coloring Books (Location: COL-DOV)
$3.74
Why Read Moby-Dick?
by Nathaniel Philbrick
Reprint from Penguin Press
for 11th-Adult
in 19th Century Literature (Location: LIT6-19)
$8.00 (1 in stock)