1 A good cut is the key to a successful roast beef. 2  Choose beef sirloin or round. 3  It's important that the round is rolled properly to avoid having any unwanted fat or gristle. 4  It is also preferred to chop the meat into small pieces to cook well.
Zebra Migration. Each and every year, thousands of zebra migrate in search for better grazing pastures. Zebras are just one of the many of herbivores that migrate in search of food every year.his is a very tough journey for the zebras. There are large predators such as leopards, lions, hyenas and cheetahs. These predators are attracted to the masses of easy prey. This migration loop also crosses the Mara and Grumeti Rivers, which are home to Nile crocodiles.
The Situation: Quagga and zebra mussels are aquatic invasive species that are native to eastern Europe. The quagga mussel originated from Dnieper River drainage of Ukraine. The zebra mussel was first described from the lakes of southeast Russia and its natural distribution also includes the Black and Caspian Seas.cological problems also result from mussel invasions. Zebra and quagga mussels can kill native freshwater mussels in two ways: (1) attachment to the shells of native species can kill them, and (2) these invasive species can outcompete native mussels and other filter feeding invertebrates for food.