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Evolution & Behaviour

showing 1-5 of 44 breaks

High performance silks deployed by web building wolf spiders

Silk is a truly amazing fiber naturally produced by moths, caddisflies, some flies, ants, bees, and grasshoppers, as well as spiders. If you have seen a spider abseil from their web, you are familiar with dragline silk, one of several types of silk a spider... click to read more

Views 199
Reading time 4 min
published on Nov 12, 2018
What were the ice age ‘stilt-legged’ horses of North America?

The horse family, which includes horses, zebras, and donkeys, is more than 50 million years old. During its early years, members of this group were the size of dogs and had three toes. Over time, they became the large, one-toed animals we know today. But... click to read more

  • Peter D. Heintzman | Senior Researcher at Tromsø University Museum, UiT – The Arctic University of Norway, Tromsø, Norway
Views 1351
Reading time 3.5 min
published on Nov 2, 2018
Are burrowing snakes digging their own evolutionary grave?

Why is there variation in the number of species between different groups of animals and plants? Why do some groups seem to be more "evolutionarily successful" with a higher number of species than other? For instance, there are over 10,000 species of birds but just... click to read more

  • Vivek Philip Cyriac | PhD student at IISER-TVM Centre for Research and Education in Ecology and Evolution (ICREEE) and School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, India
Views 588
Reading time 3.5 min
published on Oct 26, 2018
Fair or unfair? The infinite patience of domestic dogs

It is likely not surprising to anyone reading this that humans have a strong sense of fairness. We recognize and respond to inequities from a very young age, and we continue to strive for equity throughout our lives. Though many may consider this a uniquely... click to read more

  • Jenny Essler | Postdoctoral Research Fellow at Messerli - Research Institute, University of Veterinary Medicine, Vienna, Austria
Views 296
Reading time 3.5 min
published on Oct 12, 2018
New fossil giraffe helps unravel the evolution of this iconic family

Despite everyone thinking of a giraffe's long neck as its distinguishing feature its family members are defined by two characteristics unrelated to necks: they all have double-lobed canine teeth (like a boxing glove), and ossicones, a special type of bony outcroppings covered by hair on... click to read more

  • María Ríos Ibáñez | Postdoctoral Research Fellow at Department of Paleobiology, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain
Views 292
Reading time 3.5 min
published on Oct 5, 2018