mongolia montenegro montserrat morocco mozambique myanmar namibia nauru nepal netherlands new caledonia new zealand nicaragua niger nigeria north korea norway oman pakistan palau palestinian national authority panama papua new guinea paraguay peru philippines poland portugal puerto rico qatar republic of...
disease or fasciolosis is caused by the trematode parasite, fasciola hepatica. the same species affects both sheep and cattle. disease is caused as a result of the migration of large numbers of immature flukes burrowing through the liver tissues and/or from the existence of adult flukes sucking blood...
australia. mark kolbe/getty images advertisement back in , out of concern that many of america's native plants and animals were in danger of extinction , congress passed the endangered species act . the law enables regulators to designate species as either "endangered," meaning that they're at risk...