Scaumenacia

Directory

References

Discover

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

Two chicks near an egg with a white background (poultry, chick, chickens, birds).

What Do Eggs Have to Do with Easter?

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

Hemp (Cannabis sativa).

9 Mind-Altering Plants

Marriage. A couple getting married during a church wedding ceremony. (religion, ceremony, bride, groom)

The Seven Sacraments of the Roman Catholic church

Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,

Which Religion Is the Oldest?

Entrants falling and tumbling over while chasing the cheese at the 2016 'Cheese Rolling' held at Cooper's Hill, in the Cotswolds, Brockworth England

7 of the World’s Most Dangerous Festivals

Scaumenacia

fossil lungfish genus

Learn about this topic in these articles:

evolution of lungfish

In lungfish: Evolution
Scaumenacia and Phaneropleuron, common forms in the Late Devonian (about 382.7 million to 358.9 million years ago), exhibited a much-reduced first dorsal fin (the first fin forward on the back); the second dorsal fin was enlarged and had shifted further toward the tail. Lungfish of…
Read More