2019 First-Class Forever Stamp,Frogs: Northern Leopard Frog
# 5396 - 2019 First-Class Forever Stamp - Frogs: Northern Leopard Frog
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5396 - 2019 First-Class Forever Stamp - Frogs: Northern Leopard Frog
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US #5396
2019 Northern Leopard Frog – Frogs
• One of four stamps commemorating frogs of North America
Stamp Category: Commemorative
Set: Frogs
Value: 55¢ First Class Mail Rate (Forever)
First Day of Issue: July 9, 2019
First Day City: Boise, Idaho
Quantity Issued: 200,000,000
Printed by: Banknote Corporation of America
Printing Method: Offset
Format: Double-sided Booklet of 20
Tagging: Phosphor Tagged Paper, Block Tagged
Why the stamp was issued: To showcase the beauty and adaptability of the Pacific tree frog.
About the stamp design: Pictures a digital illustration of the northern leopard frog. Original artwork by Nancy Stahl consisting of shades of green and brown to represent how this frog blends in with its native environment.
First Day City: The First Day of Issue Ceremony was held at the Morrison Knudsen Nature Center in Boise, Idaho.
About the Frogs set: Includes four stamps showcasing the beauty and diversity of different North American frog species: Pacific tree frog, northern leopard frog, American green tree frog, and squirrel tree frog. Original artwork by Nancy Stahl consisting of shades of green and brown to represent how these frogs blend in with their native environments.
History the stamp represents: The northern leopard frog comes from the family of ranidae, which is the “true frog family.” This frog is a hardy breed and has become the state amphibian of Minnesota and Vermont.
The northern leopard frog is a medium size frog, measuring around 2-5 inches long. It is green or brown with dark spots and can leap 5-6 feet in a zigzag pattern. Since this frog doesn’t secrete anything through its skin, its color and ability to jump help it to escape predators.
This frog can also slow its heartbeat, which helps it survive winter when it hibernates on the bottom of ponds. In spring, it emerges as if it never slowed down. After the northern leopard frog mates, in March-June, it leaves the water and spends the summer in grassy areas. It has a large mouth and eats the typical small insects, but has also been known to eat birds, garter snakes, and even bats.
The northern leopard frog produces an enzyme in its oocyte (egg cell) that has been found to attack cancer cells. This enzyme, called amphinase, can be extracted from the eggs and also easily made synthetically. Researchers are optimistic the enzyme will be an alternative to invasive operations, radiation, or chemotherapy. The northern leopard frog might just be the hero that makes cancer a non-life-threatening disease.
US #5396
2019 Northern Leopard Frog – Frogs
• One of four stamps commemorating frogs of North America
Stamp Category: Commemorative
Set: Frogs
Value: 55¢ First Class Mail Rate (Forever)
First Day of Issue: July 9, 2019
First Day City: Boise, Idaho
Quantity Issued: 200,000,000
Printed by: Banknote Corporation of America
Printing Method: Offset
Format: Double-sided Booklet of 20
Tagging: Phosphor Tagged Paper, Block Tagged
Why the stamp was issued: To showcase the beauty and adaptability of the Pacific tree frog.
About the stamp design: Pictures a digital illustration of the northern leopard frog. Original artwork by Nancy Stahl consisting of shades of green and brown to represent how this frog blends in with its native environment.
First Day City: The First Day of Issue Ceremony was held at the Morrison Knudsen Nature Center in Boise, Idaho.
About the Frogs set: Includes four stamps showcasing the beauty and diversity of different North American frog species: Pacific tree frog, northern leopard frog, American green tree frog, and squirrel tree frog. Original artwork by Nancy Stahl consisting of shades of green and brown to represent how these frogs blend in with their native environments.
History the stamp represents: The northern leopard frog comes from the family of ranidae, which is the “true frog family.” This frog is a hardy breed and has become the state amphibian of Minnesota and Vermont.
The northern leopard frog is a medium size frog, measuring around 2-5 inches long. It is green or brown with dark spots and can leap 5-6 feet in a zigzag pattern. Since this frog doesn’t secrete anything through its skin, its color and ability to jump help it to escape predators.
This frog can also slow its heartbeat, which helps it survive winter when it hibernates on the bottom of ponds. In spring, it emerges as if it never slowed down. After the northern leopard frog mates, in March-June, it leaves the water and spends the summer in grassy areas. It has a large mouth and eats the typical small insects, but has also been known to eat birds, garter snakes, and even bats.
The northern leopard frog produces an enzyme in its oocyte (egg cell) that has been found to attack cancer cells. This enzyme, called amphinase, can be extracted from the eggs and also easily made synthetically. Researchers are optimistic the enzyme will be an alternative to invasive operations, radiation, or chemotherapy. The northern leopard frog might just be the hero that makes cancer a non-life-threatening disease.