However, as the preservation of behaviour in the fossil record is exceedingly rare, these ideas cannot readily be tested.

However, human activities, primarily the burning of fossil fuels and clearing of forests, have intensified the natural greenhouse effect, causing global warming.

However, no other fossil is known that would be preferable.

However, he maintained that a certain ' materia pinguis ' or ' fatty matter ,' set into fermentation by heat, gave birth to fossil organic shapes, as opposed to fossil shells having belonged to living animals.

However, the energy density of hydrogen is considerably higher than that of electric batteries, making it a serious contender as an energy carrier to replace fossil fuels.

However, recent fossil evidence from Queensland suggests that the Komodo dragon evolved in Australia before spreading to Indonesia.

However, the fossil record retains evidence of many of these older species.

However, despite these limitations, the inclusion of fossils is invaluable, as they can provide information in sparse areas of trees, breaking up long branches and constraining intermediate character states ; thus, fossil taxa contribute as much to tree resolution as modern taxa.

However, it was shown by Bennett that the type specimen later designated for Diopecephalus was a fossil belonging to P. kochi, and no longer thought to be separate from Pterodactylus.

However, the punctuational equilibrium model may still be inferred from both the observation of stasis and examples of rapid and episodic speciation events documented in the fossil record.

However, there has been little luck in getting closer to the true answer, especially because there are almost 10 million years worth of fossil records missing.

However, organisms and ecosystems, as far as it can be determined by the fossil record, do not appear to have undergone the significant change that would be expected by a mass extinction.

However, by that time, nuclear power may have largely replaced fossil fuels as a means of energy production.

However, this was not accepted by the taxonomic community at large ; the name S. harrisii has been retained and S. laniarius relegated to a fossil species.

However, U-shaped fossil burrows that could be Echiuran have been found dating back to the Cambrian.

However, the fossil record of the microscopic non-mineralized group is ( perhaps unsurprisingly ) scarce, so it is difficult to trace out the phylum's evolutionary history in any detail.

However, fossil evidence is scant, and it is really only with the evolution of the diatoms themselves that the heterokonts make a serious impression on the fossil record.

However, the precise timing of the " take-over " is unclear, and different authors have conflicting interpretations of the fossil record.

However, the economic system relied on massive concessionary inputs of fossil fuels, primarily from the Soviet Union and the People's Republic of China.

However, in 2010, Melott & Bambach found strong evidence in the fossil record confirming the extinction event periodicity originally claimed by Raup & Sepkoski in 1984, but at a higher confidence level and over a time period nearly twice as long.

However, with the industrialisation of farming and the wider use of fossil fuels the traditional use and management of the Fen began to decline.

However it is certain that their genesis lies earlier than this, as there are large gaps in Australia's fossil record and virtually no fossil record at all in geologically active New Guinea.

However, as witnessed by the large corporate bond calendar at present, as well as the record amount of municipal bond issues approved by voters, the over-all demands for capital funds seem likely to remain high, so that any downward pressure on rates from reduced demand should not be great.

However much football has been over-emphasized, the public likes to measure its collegiate favorites by the scoreboard, so, while Yale need never give its record a thought again since outscoring its opponents 694 to 0 in the season of 1888, Dartmouth had to wait until its championship team of 1925 for national recognition.

However, there is no record of this incident in Bradley's own account of the discovery, and it may therefore be apocryphal.

However, in the late 1950s and early 1960s, base-stealing was brought back to prominence primarily by Luis Aparicio and Maury Wills, who broke Cobb's modern single-season record by stealing 104 bases in 1962.

However, if the wild-card team and the division winner with the best record are from the same division, the wild-card team plays the division winner with the second-best record, and the remaining two division leaders play.

However, if the wild-card team and the division winner with the best record are from the same division, the wild-card team plays the division winner with the second-best record, and the remaining two division leaders play.

However, after a 14-year stretch of consecutive losing seasons, the Orioles posted a winning record in 2012 and qualified for the postseason for the first time since 1997.

However, the team finished the 2009 season with 64 wins and 98 losses, making it the worst record in the 2009 American League season.

" However, a Declaration of the Revolutionary Government dated 8 June 2009 stated that while Cuba welcomed the Assembly's gesture, in light of the Organization's historical record " Cuba will not return to the OAS ".

However, that would be the only time during that season that the club would have a record over. 500, finishing at 53 – 64 and in last place in the National League West in the strike-shortened season.

However, Brian Wilson has stated that the idea of the record being a " concept album " is mainly within the way the album was produced and structured.

However, the main focus, at least when aimed at the commercial data processing market, is still on descriptive attributes on repetitive record structures.

However, Vertov's two credos, often used interchangeably, are in fact distinct, as Yuri Tsivian points out in the commentary track on the DVD for Man with the Movie Camera: for Vertov, " life as it is " means to record life as it would be without the camera present.

However, dhimmis frequently attended the Muslim courts in order to record property and business transactions within their own communities.

However, a fresher Hawthorn thrashed them by a then record margin.

However, no written record of this eulogy exists.

However, at the All-Star break they were 44 – 42, and the NL East was unusually competitive, as all five of its teams had a winning record at the break.

However, the Marlins did send four players to the All-Star Game ( Willis, Lo Duca, Castillo, and Cabrera ), tying a team record.

However, as recording plans were made, Parsons exerted a controlling influence over the group, persuading the other members to leave Los Angeles and record the album in Nashville, Tennessee.

However, the binding to hemoglobin does serve as a record for average blood glucose levels over the lifetime of red cells, which is approximately 120 days.

However, in this view the Torah is still held as mankind's record of its understanding of God's revelation, and thus still has divine authority.