"The seal, adapted principally for water. The extremities are larger than in the porpoise and manatee."—Pettigrew, 1874

The Seal

"The seal, adapted principally for water. The extremities are larger than in the porpoise and manatee."—Pettigrew,…

"The turtle, adapted for swimming and diving, the extremities being relatively larger than in the seal, sea-bear, and walrus. The anterior extremities have a thick anterior margin and a thin posterior one, and in this respect resemble wings."—Pettigrew, 1874

The Turtle

"The turtle, adapted for swimming and diving, the extremities being relatively larger than in the seal,…

Pictured are men plowing a sowing. This illustration is from a Babylonian seal impression from the 14th century, BCE.

Babylonian Seal Impression

Pictured are men plowing a sowing. This illustration is from a Babylonian seal impression from the 14th…

Image of an Argentine ant. This destructive insect is native to parts of South America, but was accidentally introduced to other countries including North America, Australia, Hawaii, Europe, Japan, New Zealand, and Easter Island. The smaller image is slightly smaller than its actual size.

Argentine Ant

Image of an Argentine ant. This destructive insect is native to parts of South America, but was accidentally…

This illustration shows a human leg (front view), and comparative diagrams showing modifications of the leg:
1. Human, 2. Ox, 3. Horse, 4. Bird, 5. Frog, 6. Crocodile, 7. Seal, 8. Dog, 9. Bear
P. Pelvis, FE. Femur, TI. Tibia, FI. Fibula, TA. Tarsus, MT. Metatarsus, PH. Phalanges, OC. Os Calcis.

Human Leg (Front View), and Comparative Diagrams showing Modifications of the Leg

This illustration shows a human leg (front view), and comparative diagrams showing modifications of…

This illustration shows the leg of a seal.
P. Pelvis, FE. Femur, TI. Tibia, FI. Fibula, TA. Tarsus, MT. Metatarsus, PH. Phalanges, OC. Os Calcis

Leg of Seal

This illustration shows the leg of a seal. P. Pelvis, FE. Femur, TI. Tibia, FI. Fibula, TA. Tarsus,…

The claws of a seal's left hind foot.

Seal

The claws of a seal's left hind foot.

"The seal <i>Macrorhinus elephantinus</i> or <i>proboscideus</i>, or <i>Morunga proboscidea</i>. It is the largest of the otaries; the snout is prolonged into a proboscis suggestive of an elephant's trunk. It is confined to the higher latitudes of the southern hemisphere...." &mdash;Whitney, 1889

Elephant Seal on a Rock

"The seal Macrorhinus elephantinus or proboscideus, or Morunga proboscidea. It is the largest of the…

Illustration of the entrance of an igloo, built out of ice, partially underwater. A seal is swimming under the water, headed for the entrance.

Seal Swimming up to an Igloo

Illustration of the entrance of an igloo, built out of ice, partially underwater. A seal is swimming…

<i>Leptonychotes weddelli</i>. "A spotted seal of the southern and antarctic seas, belonging to the family <i>Phocidae</i> and either of two different genera." &mdash;Whitney, 1889
<p>This illustration shows the seal lying on some rocks.

Leopard Seal

Leptonychotes weddelli. "A spotted seal of the southern and antarctic seas, belonging to the family…

"A press or stamp bearing dies on its jaws, or a die and a bed, for imprinting or embossing any device upon paper or a plastic material, as lead. It is much used to form the seals of seal-locks, and may be a kind of heavy pincers. a and a1, dies; b (dotted outline), bar sliding in guide c; d (dotted outline), abutment for coiled spring e; f, lever with cam g at the bottom. The lever moved in the direction in dicated by the arrow forces a down upon a1; when it is released the spring reverses the motion." &mdash;Whitney, 1889

Seal Press

"A press or stamp bearing dies on its jaws, or a die and a bed, for imprinting or embossing any device…

"A circular box used for covering and protecting a seal. Old documents were commonly sealed by means of a ribbon which passed through the parchment, and to which was affixed a large circular wax seal, not attached to the parchment itself, but hanging below its edge. The skippet used to protect such a seal was commonly turned of wood, like a shallow box, with a cover formed of a simple disk of wood held to the box by strings passed through eyelet-holes." -Whitney, 1889

Skippet - Open Box with a Seal Inside

"A circular box used for covering and protecting a seal. Old documents were commonly sealed by means…