Question: Larry Elin hired which person, that later founded a company that animated the movie Ice Age?

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Surviving Sid: Surviving Sid is a 2008 computer-animated short film from Blue Sky Studios, starring Sid the Sloth of "Ice Age" and a cameo appearance by Scrat.  It is the third in the series of "Ice Age" short films, the other two being "Gone Nutty" and "No Time for Nuts".  Unlike the first two "Ice Age" short films, "Surviving Sid" focuses on Sid and a small animal group of camping children.  Directed by Galen Tan Chu and Karen Disher, the short premiered on December 9, 2008, on the "Horton Hears a Who! " DVD and Blu-ray.

Blue Sky Studios: Blue Sky Studios is an American computer animation film studio based in Greenwich, Connecticut that has been owned by 20th Century Fox since 1997.  The studio was founded in 1987 by Chris Wedge, Michael Ferraro, Carl Ludwig, Alison Brown, David Brown, and Eugene Troubetzkoy after the company they worked in, MAGI, one of the visual effects studios behind "Tron" (1982), shut down.  Using its in-house rendering software, the studio had worked on visual effects for commercials and films before completely dedicating itself to animated film production in 2002 with the release of "Ice Age".

Ice Age (Magic: The Gathering): Ice Age is a block of three sets in "", consisting of the Ice Age, Alliances and Coldsnap sets.  It is also the titular first set in the block.  The Ice Age set is the eleventh set and the sixth expansion set, released in June 1995.  Set in the years from 450 to 2934 , the set describes a world set in perpetual winter due to the events in "".  Ice Age was followed up June 1996 with Alliances, the fourteenth "Magic: The Gathering" set and eighth expansion set.; and on July 21, 2006 with "Coldsnap".  The time period between "Alliances" and "Coldsnap" was the longest period of time between the beginning and the completion of a full block in Magic.  Originally, the set "", released in October 1995, was the second set in the "Ice Age" block (with "Alliances" being the third set), but following the release of "Coldsnap", "Homelands" was removed from the block in favor of "Coldsnap".

Würm glaciation: The Würm glaciation (German: "Würm-Kaltzeit" or "Würm-Glazial" or Würm stage, colloquially often also "Würmeiszeit" oder "Würmzeit"; c.f. ice age), in the literature usually just referred to as the Würm, often spelt "Wurm", was the last glacial period in the Alpine region.  It is the youngest of the major glaciations of the region that extended beyond the Alps themselves.  It is, like most of the other ice ages of the Pleistocene epoch, named after a river, the Würm in Bavaria, a tributary of the Amper.  The Würm ice age can be dated to the time about 115,000 to 11,700 years ago, the sources differing depending on whether the long transition phases between the glacials and interglacials (warmer periods) are allocated to one or other of these periods.  The average annual temperatures during the Würm ice age in the Alpine Foreland were below −3 °C (today +7 °C).  This has been determined from changes in the vegetation (pollen analysis) as well as differences in the facies.

Riss glaciation: The Riss glaciation, Riss Glaciation, Riss ice age, Riss Ice Age, Riss glacial or Riss Glacial (German: "Riß-Kaltzeit" , "Riß-Glazial ", "Riß-Komplex " or (obsolete) "Riß-Eiszeit ") is the second youngest glaciation of the Pleistocene epoch in the traditional, quadripartite glacial classification of the Alps.  The literature variously dates it to between about 300,000 to 130,000 years ago and 347,000 to 128,000 years ago.  It coincides with the Saale glaciation of North Germany.  The name goes back to Albrecht Penck and Eduard Brückner who named this cold period after the river Riss in Upper Swabia in their three volume work "Die Alpen im Eiszeitalter " ("The Alps in the Ice Age") published between 1901 and 1909.

Chippewa Moraine State Recreation Area: Chippewa Moraine State Recreation Area is a state park unit of Wisconsin, USA, preserving numerous glacial landforms.  The abundance and quality of these geological features led to its being included in the Ice Age National Scientific Reserve.  The Ice Age National Scenic Trail passes through the park.  The park is largely undeveloped, but its modern visitor center serves to interpret the area's geological and biological features.  Official documentation alternatively refers to the park as the Chippewa Moraine Ice Age Reserve or the Chippewa Moraine Ice Age National Scientific Reserve.  It is located in northwestern Chippewa County.

Ice age: An ice age is a period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Within a long-term ice age, individual pulses of cold climate are termed "glacial periods" (or alternatively "glacials" or "glaciations" or colloquially as "ice age"), and intermittent warm periods are called "interglacials".  In the terminology of glaciology, "ice age" implies the presence of extensive ice sheets in both northern and southern hemispheres.  By this definition, we are in an interglacial period—the Holocene—of the ice age.  The ice age began 2.6 million years ago at the start of the Pleistocene epoch, because the Greenland, Arctic, and Antarctic ice sheets still exist.

Last glacial period: The last glacial period, popularly known as the Ice Age, was the most recent glacial period, which occurred from years ago.  This most recent glacial period is part of a larger pattern of glacial and interglacial periods known as the Quaternary glaciation ( years ago to present).  From this point of view, scientists consider this "ice age" to be merely the latest glaciation event in a much larger ice age, one that dates back over two million years and is still ongoing.

Ray Zillmer: Ray Zillmer (April 19, 1887 – December 13, 1960) was an American attorney, mountaineer and conservationist.  He is best known as the founder of the Ice Age Park and Trail Foundation, Inc. (later renamed the Ice Age Trail Alliance) and originator of the Ice Age Trail.  He was also instrumental in the conservation of land in the Kettle Moraine of southeast Wisconsin and had an indirect role in the creation of the National Trails System.  He died in Milwaukee on December 13, 1960 of heart complications.

Larry Elin: Larry Elin is an associate professor in the Television, Radio, Film department at the S.I Newhouse School of Public Communications at Syracuse University.  He teaches media business, interactive media, and animation and special effects.  He started his career, however, as an animator at Mathematical Applications Group, Inc., in Elmsford, NY, in 1973, one of the first 3-D computer animation companies.  By 1980, Elin had become head of production, and hired Chris Wedge, who later founded Blue Sky Studios, among others.  Elin and Wedge were the key animators on MAGI's work on the feature film "Tron", which included the Lightcycle, Recognizer, and Tank sequences.  Elin later became executive producer at Kroyer Films, which produced the animation for .

Supporting paragraphs: Larry Elin Blue Sky Studios
Answer: Chris Wedge