What the sources say
Sacred ScarabScarabaeus sacer
Every figure, record and mechanism on the Sacred Scarab profile was written from a source, and this is the working table behind it: 41 claims checked word for word against these sources. The left column is what the page says. The right column is the source's own words, copied, not paraphrased; a ... marks a cut and[brackets] an insertion. Open any source and check it yourself.
Profile updated
Source
01
Burgas Regional Museum
Sacer Dung Beetle. Burgas Regional Museum.
- The page saysA museum in Bulgaria says the beetle can reach 35 to 38 mm long.
- The source says
It can reaches a length of 35-38 mm.
- The page saystags: burrower
- The source says
The wide flattened body has peculiar features specialized for digging: 6 lugs edge in front of the head and front legs with jagged shin.
Note: task #1096: kept on the definition (excavating for a nursery): the body is built for digging and the ball is buried in the soil with the egg inside - The page saystags: burrower
- The source says
They roll them to some distance, then bury them in the soil and lay their eggs inside.
Source
02
Sullivan et al. 2016
Sullivan et al. (2016). Does one size suit all? Dung pad size and ball production by Scarabaeus sacer (Coleoptera: Scarabaeidae: Scarabaeinae). European Journal of Entomology.
- The page saysA very large dung roller that shapes droppings into balls and holds heat in its thorax in flight.
- The source says
Scarabaeus sacer , which is a very large roller
Note: tagline; thorax heat claim below - The page saysSandy ground, in a discontinuous belt from southern Europe and northern Africa across central Asia to western China
- The source says
Scarabaeus sacer has been reported from more than 30 countries in a discontinuous belt from the far west of southern Europe and northern Africa across central Asia to western China
Note: stats.habitat - The page saysIt lives in sandy places.
- The source says
Scarabaeus sacer inhabits sandy environments
- The page saysRolled dung balls of 16 to 86 cc in a Turkish study, and holds flight heat in its thorax
- The source says
In the current study, ball volume ranged from 16 cc to 86 cc.
Note: stats.superpower; thorax part claimed below - The page saysa study in Turkey calls it a very large one
- The source says
Scarabaeus sacer , which is a very large roller
- The page saysthe 30 balls it measured ranged from 16 cc to 86 cc in volume
- The source says
For the 30 balls measured from the 5 pad sizes, volume ranged from 16 cc to 86 cc.
- The page saysCiting a 1982 study, the same paper gives 30 g as the fresh weight of a ball made by a single sacred scarab.
- The source says
For single beetles, fresh ball weight varied from 0.03 g in Sisyphus seminulum Gerstaecker [Cambefort (pers. obs.) in Hanski & Cambefort, 1991a] to 30 g in Scarabaeus sacer Linnaeus (Marsch, 1982)
Note: the paper cites Marsch 1982; 'For single beetles' is the paper's scope - The page saysIt cites that study again for the three kinds of ball the beetle makes: food balls, brood balls and nuptial balls.
- The source says
S. sacer produces brood, food and nuptial balls (Marsch, 1982)
Note: the paper cites Marsch 1982 - The page saysThe species has been reported from more than 30 countries in a discontinuous belt.
- The source says
Scarabaeus sacer has been reported from more than 30 countries in a discontinuous belt
- The page saysThe belt runs from the far west of southern Europe and northern Africa across central Asia to western China.
- The source says
from the far west of southern Europe and northern Africa across central Asia to western China
- The page saysThe Turkish study ran on a coastal sand dune, where free-ranging domestic water buffalo regularly leave dung pads.
- The source says
The experiment was conducted along the exposed ridge line of a coastal sand dune ... Free-ranging, domesticated water buffalo ( Bubalus bubalis Linnaeus) regularly deposit dung pads on the dune system
- The page saysOn the Turkish dune, over two nights in June, 98% of the balls were made at night
- The source says
production was almost exclusively nocturnal (98%), with only 2 balls produced outside night hours
Note: 'almost exclusively nocturnal (98%)': the figure is the claim; two nights and early June 2014 from the same paper's methods and results - The page says59% of all balls came between 21.00 and 22.00
- The source says
with 59% of all balls produced between 21.00 and 22.00
- The page saysThey gathered at eight of the larger pads, of 500 g to 2,000 g, which yielded six times as many balls as the other ten pads of those sizes.
- The source says
aggregation of S. sacer at 8 pads of the 3 largest pad sizes, 500 g, 1,000 g and 2,000 g ... Six times as many balls were produced from these 8 pads as from the remaining 10 pads of those 3 sizes.
- The page saysA 1994 study reported glands in both males and females, which may be responsible for chemical attraction and the crowding.
- The source says
The presence of glandular structures in male and female S. sacer was reported by Pluot-Sigwalt (1994) and they may be responsible for chemical attraction and aggregation.
Note: the paper cites Pluot-Sigwalt 1994; 'glands' for 'glandular structures' - The page saysNot Evaluated
- The source says
Scarabaeus sacer has been reported from more than 30 countries
Note: stats.conservationStatus: no Red List assessment found; GBIF has no category and Crossref has no assessment DOI for Scarabaeus sacer (prefetch 2026-10-06). Quote only anchors the species - The page saysNo. In the Turkish dune experiment it made balls from every pad size on offer, from 125 g to 2,000 g.
- The source says
Scarabaeus sacer produced balls from all 5 sizes of ... dung pads from 125 g to 2,000 g.
- The page saysThe smallest pads gave up the biggest share of their dung to balls, at 43%.
- The source says
the highest percentage utilisation was in the 125 g pads (43%)
Note: 125 g is the smallest pad size and 43% the highest percentage, per the quoted line - The page sayswater buffalo droppings
- The source says
water buffalo ( Bubalus bubalis Linnaeus) regularly deposit dung pads on the dune system between a large freshwater lake and the sea, attracting large numbers of S. sacer
Note: stats.diet - The page saysover two nights in June
- The source says
in early June, 2014
Note: study date - The page saysOther studies have also recorded it active at dusk and by day.
- The source says
it has also been recorded as crepuscular (Lumaret, 1990; Verdú et al . , 2004) and diurnal
Note: crepuscular = active at dusk; the paper cites other studies - The page saysOn the Turkish dune the beetles also crowded together.
- The source says
the aggregation of S. sacer at 8 pads of the 3 largest pad sizes
- The page says98% of the balls were made at night
- The source says
production was almost exclusively nocturnal (98%), with only 2 balls produced outside night hours
Note: vibe.reason animal clause; same quote as the body claim
Source
03
Verdú, Alba-Tercedor & Jiménez-Manrique 2012
Verdú, Alba-Tercedor & Jiménez-Manrique (2012). Evidence of Different Thermoregulatory Mechanisms between Two Sympatric Scarabaeus Species Using Infrared Thermography and Micro-Computer Tomography. PLoS ONE.
- The page saysholds heat in its thorax
- The source says
S. sacer presents an anatomical design that is able to sequester heat within the meso- and metathorax
Note: tagline - The page saysDung, such as horse and water buffalo droppings
- The source says
collected in June 2010 and 2011 directly from the surface of horse droppings
Note: stats.diet; buffalo half claimed below - The page saysA roller is a dung beetle that cuts off a piece of dung, rolls it some distance away from the pile and buries it.
- The source says
rollers (dung beetles that remove a portion of dung from the mass, roll it some distance away from the source and then bury it)
Note: paraphrase of the source definition - The page saysIn Spain's Doñana National Park, the beetle is active from April to July.
- The source says
Scarabaeus sacer and S. cicatricosus are active from April to July in the Doñana National Park
- The page saysIn lab flights by beetles caught in Doñana, its thorax ran 5.6°C warmer than its abdomen on average.
- The source says
Scarabaeus sacer showed a difference between T thorax and T abdomen of 5.6°C in average
Note: warmer: the thorax is the main heat generation centre (verdu-2012, claimed below), so the 5.6 C difference runs thorax hotter - The page saysIts tracheal system and air sacs took up 11.66% of its body volume, against 2.79% in a close relative, S. cicatricosus.
- The source says
%V air vs. V T 11.66±2.75 2.79±1.46 <0.01
Note: Table 2 'Tracheal and air sac volume', %V air vs V T; sacer first, cicatricosus second. Beetles collected in Doñana (methods) - The page saysBefore takeoff the beetle shivers its wing muscles to warm up, which makes sure its thorax is hot enough to launch.
- The source says
the typical warm-up, which implies wing muscle vibrations (wing-shivering) ... Pre-flight warm-up ensures that T thorax is sufficiently high for takeoff
Note: "before" paraphrases "pre-flight" - The page saysIn flight the thorax is the main heat generation centre, and the abdomen does not actively dump that heat.
- The source says
the thorax is the main heat generation centre and the thermoregulation is limited by the use of the abdomen as a ‘passive thermal window’; abdomen does not actively dissipate the increase of T thorax generated during flight
- The page saysResearchers call this a passive thermal window.
- The source says
the use of the abdomen as a ‘passive thermal window’
- The page saysThe study suggests the beetle's abdominal air sacs, bigger than its relative's, may work as insulation.
- The source says
S. sacer have a significant greater development of abdominal air sacs than S. cicatricosus ... suggesting the existence of a heat insulator mechanism
Note: source text reads 'that suggesting the existence of a heat insulator mechanism' - The page saysan abdomen that does not actively shed heat raises the danger of overheating when the air sits around 35 to 40°C
- The source says
abdomen does not actively dissipate the increase of T thorax generated during flight, thus increasing the danger of overheating when T ambient oscillates around 35–40°C
- The page saysFrom April to July, in Doñana National Park.
- The source says
Scarabaeus sacer and S. cicatricosus are active from April to July in the Doñana National Park
- The page saysThe beetles used in the heat study were collected there in June 2010 and 2011, straight off horse droppings.
- The source says
Individuals of both species were collected in June 2010 and 2011 directly from the surface of horse droppings
- The page saysIn Doñana, Scarabaeus cicatricosus is more active in the warmer hours of the day, while S. sacer avoids them.
- The source says
daily temporal segregation with S. cicatricosus being more active during warmer hours of the day in opposition to S. sacer who avoid it
- The page saysTheir bodies handle heat in different ways, which gives each its own thermal niche.
- The source says
interspecific interactions between sympatric species are regulated by very different mechanisms. These mechanisms create unique thermal niches for the different species
How the table was made: a writer drafted the profile from these sources and logged each claim with its quote, a reviewer with nothing but this table checked every sentence said no more than its quote, and a script confirmed each quote appears word for word in the source. The method is in the site'sAbout page.