Sperm whale and giant squid relationship

How Whales Attack Squid: Mystery Deepens

sperm whale and giant squid relationship

The giant squid's elusive nature and fearsome appearance have long made it a popular that exists for a simpler predator-prey relationship between whale and squid, with the whale being the predator and the squid the prey. . A giant squid fighting a sperm whale in space is shown on the album cover of They Might Be. The squid and whale diorama depicts a sperm whale clashing with its prey, a giant squid. The giant squid had never been seen in its natural habitat until , . The giant squid (genus Architeuthis) is a deep-ocean dwelling squid in the family . The only known predators of adult giant squid are sperm whales, but pilot.

John Wyndham 's book The Kraken Wakes depicts an invasion of squid-like aliens. At one point the novel's villain viciously drowns a woman in the containers alcohol solution. DeMille 's film Reap the Wild Wind. Nemo's Nautilus is attacked by a giant squid that probably mistook it for a sperm whale.

A menacing giant squid briefly appears in the film Voyage to the Bottom of the Sea In the film The PagemasterAdventure, looking for a book to help Richard get past his fear of heights, picks out Leagues Under the Sea and turns to a page with an illustration of a giant squid.

Immediately water gushes out of the book, and the giant squid's tentacles slowly emerge, as Richard and Adventure ascend a ladder to escape. The title of the film The Squid and the Whale refers to the popularly imagined combat between sperm whale and giant squid, specifically as depicted in the diorama at New York's American Museum of Natural Historywhich the main character visits in the last scene of the movie. Television[ edit ] Alphabetical by series The squid becomes a contender in Animal Face-Off [ which?

The Doctor Who episode " The Power of Kroll " features a carnivorous monster resembling a giant squid the largest monster ever seen in the series which lives at the bottom of a swampy lake, and is worshipped by the natives despite the fact that it sometimes eats them.

Giant squid in popular culture

The Giant Squid a. When the Calico crew escaped sinister clones of themselves, the scientist responsible for the clones' creation, Doctor Voltrang, sent out his deadly Giant Squid to recapture them.

sperm whale and giant squid relationship

Captain Majors summoned Godzilla, who tied the Squid's tentacles into knots, forcing the Giant Squid to retreat. In the Family Guy episode " Death Is a Bitch ", a giant squid appears as an uninvited and threatening guest in the Griffin home that they choose to "just ignore and pretend it doesn't exist. In the Futurama episode " The Deep South "Fry and Umbriel cheer at a fight between a sperm whale and a giant squid.

They were saved by Godzilla Junior who was presumed dead after being attacked by the military in the last episode and find out that the reported trouble must be coming from a more powerful, super predator which turns out to be Crustaceous Rex. The giant squid was 3 in the Most Extreme episode, "Body Parts", because it has the largest eyes of any living animal. It was 5 in another episode, "Monster Myths", because it's not a sea monster and can't sink ships.

The documentary series The Future Is Wild depicts certain species of squid evolving into land-based, air-breathing forms culminating in the foot 3. It is implied that the Squibbon may someday evolve into Earth's next sapient life form.

Quest the opportunity to try out the underwater prober's arms. The Real Adventures of Jonny Quest a re-imagining of the franchise in the 90s featured an entire episode[ which? On the Cartoon Network show The Secret Saturdaysa show about a family of cryptozoologiststhe parents Solomon "Doc" and Drew Saturday are telling their son, Zak Saturday briefly in one episode[ which?

Giant squid in popular culture - Wikipedia

This is impossible, as neither a giant squid nor even a colossal squid can swallow a human whole. In the s cartoon series Super FriendsSuperman and Aquaman rescued a cruise ship from a giant squid, which had been enlarged by the scientist Dr Pisces.

The giant squid's ink had the effect of instantly enlarging any marine creatures that came into contact with it.

For eye diameter, we measured the largest diameter of the exposed portion of the eye. If integument covered large parts of the eye we only measured eye diameter when the eye was clearly discernible as a prominent, well-defined bulge underneath the integument.

sperm whale and giant squid relationship

Dorsal mantle length is a commonly used body-size proxy for squid [ 8 ]. Using mantle length as the size proxy also renders it possible to include many published data for which reliable body mass information is not available. In order to test whether Architeuthis and Mesonychoteuthis the giant and colossal squid have unusually large eyes compared to other squids we first calculated the SMA line and evaluated where in relation to this line the giant and colossal squid fall.

Giant squid eyes are sperm whale defence

We did not include Architeuthis and Mesonychoteuthis in this part of the analysis in order to avoid a bias in the regression analysis. Many of the giant squid individuals are larger than the squid species used in the calculation of the SMA line, and we assumed the scaling trend continues for larger body sizes.

In order to test whether choice of regression method influenced results, we also performed OLS regression. As mentioned above, OLS can be useful for making a prediction of the dependent variable on the basis of a specific independent variable, but often underestimates the regression slope, in particular for low correlations [ 4 ].

In other words, the prediction range describes what eye size is expected for a given body size. We then examined where giant and colossal squid plot in the distribution of all other squid. We assessed the robustness of the prediction interval by resampling with replacement and also estimated a P-value with a parametric bootstrap. We emphasize the importance of calculating prediction intervals in order to formally address the question whether the eyes of giant and colossal squid are unusual when using OLS regression.

A regression line itself contains uncertainty and thus it is important to take this uncertainty into account when evaluating whether a trait is unusual, i. Simple observations of samples that plot above and below the regression line are not informative, because about half the samples lie above the regression line by default. The second regression problem deals with the comparison of relative eye size in squid and acanthomorph fish. This is an unusual comparison because squid cephalopods and fish vertebrates are phylogenetically distant.

However, the comparison is possible because both squid and acanthomorphs are highly visual, aquatic animals with camera-type eyes and similar properties of their refractive system [ 9 ].

A challenging problem is to identify a common body size proxy in these distantly related clades. We chose body mass as the size proxy, because mass should be a less biased proxy than any linear measurements of body size.

As we were interested in the scaling of a linear variable eye diameterand to facilitate comparisons to the squid-only patterns, we used the cuberoot of body mass as the independent variable. We collected eye diameter and body mass measurements with calipers 0.

We measured the largest exposed eye diameter and body mass in fixed specimens for a total of acanthomorph species representing families, a phylogenetically and ecologically very broad sample Additional file 3.

For squid, we measured eye diameter see above and body mass in fixed specimens for a total of 58 species. We tested this by comparing the exterior and total eye diameters of species of unfixed teleost fish and found a near 1-to-1 relation isometric slope, intercept not different from 0; for data please see Additional file 4.

sperm whale and giant squid relationship

We do not have data on squid. This would only be a problem if there is a systematic change in the proportion of the eye that is covered as squid grow, because it would affect the slope of the regression which is critical in the evaluation of whether the big squid are exceptional.

sperm whale and giant squid relationship

After checking the fish data such a bias is unlikely but it cannot be fully excluded. Another possible source of error is the type of specimen preservation. We minimized this error by analyzing specimens with the same preservation type. Both fish and squid datasets contain body mass of formalin-fixed and ethanol-preserved specimens, and thus there should be no systematic bias in comparing relative eye size between fish and squid.

We did not include giant squid in this part of the analysis because their body mass was measured in unfixed specimens e. A mix of unfixed and ethanol-preserved specimens may introduce a bias in comparing relative eye size because of differential weight loss depending on preservation of specimens [ 12 ].