4
Western Cleaner Clingfish (Cochleoceps bicolor)

The western cleaner clingfish belongs to the clingfishes and is native to Southern Australia, including western and central Victoria. It grows to a maximum size of 4 cm. These little fishes set up cleaning stations, clinging to larger fishes to remove their parasites. The Western Cleaner Fish prefers deeper offshore reefs where it lives in caves, or in association with sponges and ascidians.

photo credits: Graham Short, portphillipmarinelife

youtube

Extinction In Numbers

Did you know that 99% of the world’s species are threatened by extinction? That’s a lot more than died out in the Big Dying, when nearly all the world’s animals were wiped out 250 million years ago!

By: Alltime Numbers.

This is a complete articulated human skeleton! It was purchased out of a defunct Canadian museum, who in turn sourced it from a major medical supply company. We can ship this specimen anywhere the ownership of human bones is legal. Buy it now on www.SkullStore.ca or in-store this weekend at the Prehistoria Natural History Centre in Toronto! 1193 Weston Rd, Saturday-Sunday (12-7pm).

anonymous asked:

I have a question. Well more like a comment. I follow a lot of you zoology blogs. And although I place all of us around the same stage in our lives. (mid 20s at the beginning of our careers) it seems like you and others on here are SSSSOOOO much smarter and more put together than me. :( how all of you do animal adulting so well?

aaawwww this is the sweetest anon… 

i promise you we are all idiots who have no idea what we are doing and just happen to be nerdy fans of the animal kingdom.  you most certainly can join our merry band of goofball as we try and figure all this out and learn from each other.

Honestly you may not see it now because you havent begun applying what you’ve learn but when you get out there you will be amzed at what will roll out your mouth and make you seem like you might have actually learn one or two thing in 4+years of higher education.

You just need to jump out there first

In a game called the stag hunt game, individuals have a partner with which they are hunting. If they see a hare, they can attack it and get a small quantity of food and if their partner does the same to their hare they will get a small quantity of food as well. The hare was a sure thing. But if a stag were to come along as well, the individual had to choose between the rabbit and the stag (4x the quantity). But, in order to take down the stag they would need the help of their partner and thus need to infer their partner would go for the rabbit or the stag. If one of the partners goes for the rabbit, they get a small quantity of food while their partner gets nothing. If they both go for the hare, they take the risk dominant option. But if they both go for the stag they take the payoff option and each get a large amount of food.Thus it would make sense, for each time that both individuals go for the stag.

Economics occurs in the animal kingdom as the animals are making designs about what to do. In a comparative approach of may apes (including humans), researchers set out to assess the economic levels in these animals. Capuchins, rhesus macaques, and humans each played the stag hunt game (click link for more information) on the computer to see which groups would catch on with the benefits of stag stag. Capuchins mainly showed no strategy and were able to accomplish the payoff strategy most likely due to matching their partners. Humans only had 66% finding the stag-stag method when they didn’t talk to each other and 83% when they did. Rhesus macaques however had 100% ability to go with the stag-stag combination. These monkeys were more likely to venture and test what hare-hare combinations got them unlike the humans who once found the hare-hare method, never tried stag-stag because they were already getting rewarded.

Comparative Economics: Decision-making across primates- Dr. Sarah Brosnan

Rapid Research #38

The Superb Lyrebird (Menura novaehollandiae) is most famous for it’s amazing vocal abilities. Clips from a number of sites will give you a range of this incredible bird’s repertoire, consisting of basically any sound an individual lyrebird has heard. This includes other birds, different animals, traffic and deforestation noises, and possibly most famously, the sounds of camera shutters of every variety (à la David Attenborough). All of those noises come from the bird who owns these bones!

When showing off, the Superb Lyrebird will also hold it’s long, flowing tail up over it’s head, fans it out, and tries to make itself attractive by being as loud and obvious as possible, all without getting eaten!

youtube

Science × Rhymes (#16) Dino Fossils

Each week, Tom chooses an article from the New York Times science section and translates it into a rap verse. This week, Mr. Q-U-E and Mr. D - from Music Notes Online - join to rap about the abundance of late Cretaceous dinosaur fossils coming out of southern Utah.

Utah’s ‘Grand Staircase’ Leads Back in Time to Dinosaur Shangri-La” by JENNIFER PINKOWSKI, in The New York Times

Original Beats by @ChaseMooreMusic
Special thanks to Mimi Queen for all of her help and to Dustin Growick (@TheDinosaurWhisperer and host of “The Dinosaur Show” on YouTube) for the consult.

By: Science With Tom.

2

This is a Sea Sapphire! And when it doesn’t look amazing it’s invisible!

This is a type of crustacean called a copepod. It’s back is covered in guanine crystals. If it weren’t for these crystals the Sea Sapphire would be transparent, but these crystals are spaced in such a way that they strongly reflect certain colours of light. The colour of the light that’s reflected is dependent on the angle that it comes in.

Usually, it reflects blue light, but when the light hits the Sea Sapphire at 45 degrees, the reflected light shifts into the ultraviolet. And since we can’t see that it becomes invisible!

4
Achrioptera fallax

Achrioptera fallax is a stick insect species found in Madagascar. The males are a bright electric blue (with greenish tints) and have two rows of reddish orange spines along the edges of the femur. There are also dark coloured spines going along the sides and underneath the thorax. Males are brachypterous (incapable of flight) and have small reduced wings. Females have a duller outlook. They are a light brown with red spines covering the entire thorax and the top of the head. The male grows up to 13 cm in length while the female is much bigger and can grow up to 18, 5 cm in length. Their diet in the wild is unknown but in captivity they mainly feed on bramble, raspberry, eucalyptus, and oak.

photo credits: thedancingrest, reptileforums

2

Brachycephalus: miniaturized frogs 

Following nearly 5 years of exploration in mountainous areas of the southern Brazilian Atlantic Rainforest, a team of researchers has uncovered seven new species of a highly miniaturized, brightly colored frog genus known as Brachycephalus.

These frogs are among the smallest terrestrial vertebrates, with adult sizes often not exceeding 1 cm in length, leading to a variety of changes in their body structure, such as reduction in the number of toes and fingers. In addition, many species of Brachycephalus are brightly colored, possibly as a warning to the presence of a highly potent neurotoxin in their skin known as tetrodotoxin.

Read more  -  Full Article