A dearth of field observations limit our knowledge, but intraspecific conflicts are known to sometimes result in injury or death. The screamers (Anhimidae), some jacanas (Jacana, Hydrophasianus), the spur-winged goose (Plectropterus), the torrent duck (Merganetta) and nine species of lapwing (Vanellus) use a sharp spur on the wing as a weapon. The steamer ducks (Tachyeres), geese and swans (Anserinae), the solitaire (Pezophaps), sheathbills (Chionis), some guans (Crax) and stone curlews (Burhinus) use a bony knob on the alular metacarpal to punch and hammer opponents. The jacanas Actophilornis and Irediparra have an expanded, blade-like radius. The extinct Xenicibis was unique in having an elongate forelimb and massive hand which likely functioned in combat or defence as a jointed club or flail. Swans, for instance, may strike with the bony spurs and bite when defending eggs or young.
What is another name for Anhimidae?
screamers

On 30 March, Nasser proclaimed a manifesto stipulating the restoration of civil liberties, greater parliamentary independence from the executive, major structural changes to the ASU, and a campaign to rid the government of corrupt elements. A public referendum approved the proposed measures in May, and held subsequent elections for the Supreme Executive Committee, the ASU's highest decision-making body. Observers noted that the declaration signaled an important shift from political repression to liberalization, although its promises would largely go unfulfilled.
What trend was Nasser trying to cause?
liberalization

In contrast, Europe has a greater history of unitary states than North America, thus European "federalism" argues for a weaker central government, relative to a unitary state. The modern American usage of the word is much closer to the European sense. As the power of the Federal government has increased, some people have perceived a much more unitary state than they believe the Founding Fathers intended. Most people politically advocating "federalism" in the United States argue in favor of limiting the powers of the federal government, especially the judiciary (see Federalist Society, New Federalism).
Who has a greater history of unitary states?
Europe