Only in coat colour Heck cattle may fit the aurochs, in having bulls with a black overall coat colour with a light eel stripe and sometimes having cows which have a brown colour.

However, some Heck bulls may have a light saddle on the back, which was not present in the aurochs and the sexual dimorphism is often strongly reduced.

All in all, Heck cattle differ in many respects from the aurochs and there are breeds, like Spanish fighting bulls, Sayaguesa Cattle, Pajuna Cattle, Maremmana primitivo, Maronesa and others, which bear in some aspects a greater resemblance to the wild animal, according to some scientists.

As a result, some breeds, like Heck cattle are at best a vague look-alike of the extinct wildtype aurochs, according to scientific literature.

Heck cattle are a hardy breed of domestic cattle.

Futhermore, there are other cattle breeds which resemble their wild ancestor at least as much as Heck cattle.

Consequently, modern Heck cattle are descendants from the Hellabrunn breed in Munich.

Heck cattle are twenty to thirty centimeters shorter than the aurochs they were bred to resemble.

Heck cattle are bulky, like many other domestic breeds, while the aurochs, as a wild bovine, had an athletic body shape.

The legs of Heck cattle are shorter and the trunk much longer than in the aurochs, in which shoulder height and trunk length nearly equalled each other.

All in all, proportions and body shape of Heck cattle are not particularly similar to the aurochs and do not differ significantly from many other domestic breeds.

Furthermore, blond straight front hairs are common in Heck cattle.

On the other hand, there are other robust cattle breeds which at least can cope as well as Heck cattle in nature.

There are about 2000 Heck cattle in Europe and few elsewhere.

In Oostvaardersplassen in Flevoland near Lelystad ( Netherlands ), there are about 600 Heck cattle freely roaming.

There are also Heck Cattle at the Nesseaue nature reserve near Jena, Thuringia and at the Grubenfelder Leonie nature reseve in Auerbach, Bavaria.

The tarpan and aurochs are extinct, but Konik ponies and Heck cattle are able to act as functional equivalents, occupying a similar ecological niche.

Some examples of reactions which form carbon – carbon bonds are Aldol reactions, Diels – Alder reaction, the addition of a Grignard reagent to a carbonyl group, a Heck reaction, a Michael reaction and a Wittig reaction.

Lord Kelvin, " One Heck of a Prognosticator, president of the Royal Society in the 1890s, and disbeliever in virtually every scientific discovery ," claimed that “ Radio has no future ,” “ I have not the smallest molecule of faith in aerial navigation other than ballooning ,” and “ X-rays will prove to be a hoax ;” Orville Wright, in 1908 claimed that “ No flying machine will ever fly from New York to Paris ;” and Irving Thalberg, MGM movie producer, asserted in 1927 that “ Novelty is always welcome, but talking pictures are just a fad .” Thus, making forecasts of the future has a historic basis in which many of the predictions by even experts have proven inaccurate.

They are also responsible for ' That Cunt Rabbit ' ( an animated TV show for MTV UK ), Heck ( animated show also for MTV UK ) and Balls Of Steel ( for Channel 4 UK ).

Judges for the event are Jenny Blackford, Peter Heck, Ellen Klages, Chris Roberson, and Delia Sherman.

There are 3 secondary schools in Diekirch: Lycée classique de Diekirch, Lycée technique hotelier Alexis Heck and Nordstadlycée.

Nicknames of the miners, such as ' Dick the Devil ', ' Joyful Clappers ', ' Cider Biscuit ', ' Flaming Heck ' and others, are incorporated into the work.

Furthermore, Heck cattle demonstrate a high amount of heterogeneity, higher than in wild animals or most other domestic breeds.

Locomotive number 91023 was involved in both the Hatfield rail crash and the Great Heck rail crash-after refurbishment in 2001 it was renumbered 91132 ( rather than 91123 ).

Heck cattle bull

A Heck bull demonstrating the divergent coat colours within the Heck cattle gene pool, from Oostvaardersplassen.

A typical Heck bull should be on average 1. 4 m ( 4 ' 5 ") high and a cow 1. 3 m ( 4 ' 3 "), with weight up to 600 kg ( 1, 300 lb ).

Image: GroteGrazers. JPG | A Heck bull amongst a herd of Konik ponies.

In September 2012 Zoo customers were herded indoors when a Heck bull escaped from its enclosure.

Twenty-one Nobel Prizes have been awarded to students or professors of the Institute in the past, the most famous of which is Albert Einstein in 1921, and the most recent is Richard F. Heck in 2010.

The most recent Nobel Laureate is Richard F. Heck who was awarded the Nobel Prize in chemistry in 2010.

Heck Thomas had tracked most of them ; the remainder were tracked down and eliminated by lawmen Chris Madsen and Bill Tilghman, and other posses.

The notion that somehow, atavisms could be made to accumulate by selective breeding, or breeding back, led to breeds such as the Heck cattle.

In the 1920s, Heinz and Lutz Heck tried to breed a look-alike using central European dairy breeds and southern European cattle.

Heinz Heck, in Munich, crossed Hungarian Grey Cattle, Scottish Highland, Murnau-Werdenfels, Angeln, German Friesian, Podolic cattle and Corsican breeds.

In Berlin, his brother, Lutz Heck crossed Spanish and French fighting cattle with other breeds.

Often the horns of Heck cattle strongly resemble the breeds it was created from, for example, Hungarian gray cattle.

Derek Gow, a British conservationist who operates a rare breeds farm on the Devonshire-Cornwall border, bought a herd of 13 Heck cattle in 2009.

The breeds that resulted included the Heck horse, the Hegardt or Stroebel's horse, and a derivation of the Konik breed, all of which have a primitive appearance, particularly in having the grullo coat color.

Heck cattle originated in the 1920s and 1930s in an attempt to breed back domestic cattle to their ancestral form: the aurochs ( Bos primigenius primigenius ).