November+MEB

11/2/2014

Dunkleosteus proves two things; the placoderm fish that lived in the Devonian could grow big, and be very dangerous. Only the bony head plates of Dunkleosteus have been found, but discoveries of other arthrodire placoderms like the aforementioned Coccosteus has allowed for what are believed to be fairly accurate reconstructions of the whole fish.Like with other arthrodire placoderms, Dunkleosteus did not have teeth, instead two of the head plates of the upper and lower jaws were modified into two broad shearing blades. These were driven by exceptionally powerful jaw closing muscles that allowed these ‘blades’ to be driven through anything from prehistoric sharks to the bony plates of other arthrodire placoderms. In fact some fossils of Dunkleosteus show what seems to have been damage inflicted upon the bony head plates by the jaws of another Dunkleosteus, indicated possible scavenging if not active cannibalism within these kinds of fish.

[|www.lifebeforethedinosaurs.com]

[|carnivoraforum.com]

11/10/14

Have you ever wonder waht a monarch butter file eats. Well it eats milkweeds including common milkweed (Asclepias syriaca), swamp milkweed (A. incarnata), and showy milkweed (A. speciosa); and milkweed vine in the tropics. Most milkweeds contain cardiac glycosides which are stored in the bodies of both the caterpillar and adult. These poisons are distasteful and emetic to birds and other vertebrate predators.



mdwildwife.com

11/16/14

Titanis is a large extinct flightless carnivorous bird of the family Phorusrhacidae, living in North America during 4.9—1.8 million years ago. The generic name, Titanis, refers to the titans, Ancient Greek gods that preceded the Twelve Olympians. Known locations are USA, Florida, and Texas. Titanis is not the biggest of the terror birds.And was not the first it was actually one of the last terror birds.And one of the few of the terror birds the are know to be in North America.



http://www.prehistoric-wildlife.com/species/t/titanis.html